Alyaz, Y., Spaniel-Weiss, D., & Gursoy, E. (2017). A study on using serious games in teaching German as a foreign language. Journal of Education and Learning, 6(3), 250-264.

Anyaegbu, R., Ting, W., & Li, Y. I. (2012). Serious game motivation in an EFL classroom in Chinese primary school. The Turkish Online Journal of Educational Technology, 11(1), 154–164.

Ballard & Tighe, Publishers (2019). Idea Proficiency Test. http://www.ballard-tighe.com/home/

Benton, L., Vasalou, A., Barendregt, W., Bunting, L., & Révész, A. (2019, May). What’s missing: The role of instructional design in children’s games-based learning. CHI 2019. Paper presented at the CHI Conference on Human Factors in Computing Systems Proceedings, Glasgow, Scotland.

Berkling, K., & Gilabert Guerrero, R. (2019, April). Designing a comprehensive evaluation method for learning games: A general approach with specific application to iRead. GamiFIN 2019. Paper presented at GamiFIN conference, Levi, Finland.

Carroll, S., & Swain, M. (1993). Explicit and implicit negative feedback: An empirical study of the learning of linguistic generalizations. Studies in Second Language Acquisition, 15(3), 357-386.

Chen, L. (2018, December 4). Chinese parents spend up to US$43,500 a year on after-school classes for their children. South China Morning Post. Retrieved from https://www.scmp.com/news/china/society/article/2176377/chinese-parents-spend-us43500-year-after-school-classes-their

Chen, M.-H., Tseng, W.-T., & Hsiao, T.-Y. (2016). The effectiveness of digital game-based vocabulary learning: A framework-based view of meta-analysis. British Journal of Educational Technology, 49(1), 69–77. doi: 10.1111/bjet.12526

Chinese Ministry of Education (MOE). (1978). ??????????????? [English

syllabus for ten-year full-time primary and secondary schools]. Beijing: People’s Education Press.

Chinese Ministry of Education (MOE). (2011). ?????????? (2011?) [English curriculum standards for compulsory education (2011 version)]. Beijing: Beijing Normal University Press.

Chiu, Y.-H., Kao, C.-W., & Reynolds, B. L. (2012). The relative effectiveness of digital game-based learning types in English as a foreign language setting: A meta-analysis. British Journal of Educational Technology, 43(4). doi: 10.1111/j.1467-8535.2012.01295.x

Cobb, T., & Horst, M. (2011). Does word coach coach words? CALICO Journal, 28(3), 639-661.

Cook, A. (1995). A review of the IDEA Oral Language Proficiency Test Forms C & D–English. Paper presented at the Annual Meeting of the Southwest Educational Research Association, Dallas, Texas. Retrieved from https://files.eric.ed.gov/fulltext/ED380512.pdf

Csizér, K. (2017). Motivation in the L2 classroom. In S. Loewen & M. Sato (Eds.), The Routledge handbook of instructed second language acquisition (pp. 418-432).

Dean, C. B., Hubbell, E. R., Pitler, H., & Stone, B. J. (2012). Classroom instruction that works. Alexandria, VA: ASCD.

DeKeyser, R. (2007). Practice in a second language: Perspectives from applied linguistics and cognitive psychology. Cambridge, U.K.: Cambridge University Press.

De Wilde, V., & Eyckmans, J. (2017). Game on! Young leaners’ incidental language learning of English prior to instruction. Studies in Second Language Learning and Teaching, 7(4), 673-694.

Dörnyei, Z. (2014). Motivation in second language learning. In M. Celce-Murcia, D. M. Brinton & M. A. Snow (Eds.), Teaching English as a second or foreign language (4th ed., pp. 518-531). Boston, MA: National Geographic Learning/Cengage Learning.

Doughty, C., & Williams, J. (Eds). (1998). Focus on form in classroom second language acquisition. The Cambridge applied linguistics series. Cambridge: Cambridge University Press.

Feng, D. (2006). China’s recent curriculum reform: Progress and problems. Planning and Changing, 37(1&2), 131–144.

Gass, S. M. (2017). Input, interaction, and the second language learner. (2nd ed.) New York, NY: Routledge.

Gillon, G. T. (2004). Phonological awareness: From research to practice. New York, NY: Guilford Press.

Godwin-Jones, R. (2014). Games in language learning: Opportunities and challenges. Language Learning & Technology, 18(2), 9–19. Retrieved from http://llt.msu.edu/issues/june2014/emerging.pdf

Golkova, D., & Hubackova, S. (2014). Productive skills in second language learning. Procedia–Social and Behavioral Sciences, 143, 477–481. doi: 10.1016/j.sbspro.2014.07.520

Heift, T., Mackey, A., & Smith, B. (2019). History, pedagogy, data and new directions: An introduction to the educational technology issue. Annual Review of Applied Linguistics, 39, 1-7.

Henry, A., Davydenko, S., & Dörnyei, Z. (2015). The anatomy of directed motivational currents: Exploring intense and enduring periods of L2 motivation. The Modern Language Journal, 99(2), 329-345.

Hu, G. (2005). English language education in China: Policies, progress, and problems. Language Policy, 4(1), 5–24. doi: 10.1007/s10993-004-6561-7

Hung, H.-T., Yang, J. C., Hwang, G.-J., Chu, H.-C., & Wang, C.-C. (2018). A scoping review of research on digital game-based language learning. Computers & Education, 126, 89–104. doi: 10.1016/j.compedu.2018.07.001

Jensen, S. H. (2017). Gaming as an English language learning resource among young children in Denmark. CALICO Journal, 34(1), 1–19. doi: 10.1558/cj.29519

Kang, S. H. K. (2016). Spaced repetition promotes efficient and effective learning: Policy implications for instruction. Behavioral and Brain Sciences, 3(1), 12-19.

Kebritchi, M., Hirumi, A., & Bai, H. (2010). The effects of modern mathematics computer games on mathematics achievement and class motivation. Computers & Education, 55(2), 427–443. doi: 10.1016/j.compedu.2010.02.007

Kukulska-Hulme, A., Lee, H., & Norris, L. (2017). Mobile learning revolution: Implications for language pedagogy. In C. A. Chapelle & S. Sauro (Eds.), The handbook of technology and second language teaching and learning (pp. 217-233). Oxford: Wiley & Sons.

Lasagabaster, D., & Doiz, A., & Sierra, J.M. (Eds.) (2014). Motivation and foreign language learning: From theory to practice. Amsterdam: John Benjamins

Long, M. H. (1985). A role for instruction in second language acquisition: Task based language teaching. In K. Hyltenstam & M. Pienemann (Eds.), Modeling and assessing second language acquisition (pp. 77-99). Clevedon: Multilingual Matters.

Long, M. H. (2015). Second language acquisition and task-based language teaching. Malden, MA: Wiley Blackwell Publishing.

Long, M. H. (2016). In defense of tasks and TBLT: Nonissues and real issues. Annual Review of Applied Linguistics, 36, 5-33.

Mackey, A. (2012). Input, interaction and corrective feedback in L2 classrooms. Oxford: Oxford University Press.

Masgoret, A., & Gardner, R. C. (2003). Attitudes, motivation, and second language learning: A meta–analysis of studies conducted by Gardner and associates. Language Learning, 53, 123-163. doi:10.1111/1467-9922.00212

Mercer, S. (2020). Engaging language learners in contemporary classrooms. Cambridge: Cambridge University Press.

Moeller, A., & Roberts, A. (2013). Keeping it in the target language. Multiasks, multiskills, multiconnections: Selected papers from the 2013 central states conference on the teaching of foreign languages, 21-38. Retrieved from https://digitalcommons.unl.edu/teachlearnfacpub/178/

Nakata, T., & Suzuki, Y. (2019). Effects of massing and spacing on the learning of semantically related and unrelated words. Studies in Second Language Acquisition, 41(2), 287-311. doi:10.1017/S0272263118000219

Paulson, L. H. (2004). The development of phonological awareness skills in preschool children: From syllables to phonemes. Graduate Student Theses, Dissertations, & Professional Papers, 9522. https://scholarworks.umt.edu/etd/9522

Pienemann, M. (1998). Language processing and second language development: Processability theory. Amsterdam: John Benjamins.

Plonsky, L., & Oswald, F. L. (2014). How big is “big”? Interpreting effect sizes in L2 research. Language Learning, 64(4), 878-912.

Reinhardt, J. (2017). Digital gaming in L2 teaching and learning. In C. A. Chapelle & S. Sauro (Eds.), The handbook of technology and second language teaching and learning (pp. 217-233). Oxford: Wiley & Sons.

Rogers, J. (2017). The spacing effect and its relevance to second language acquisition. Applied Linguistics, 38(6), 906-911. https://doi.org/10.1093/applin/amw052

Scholz, K. (2017). Encouraging free play: Extramural digital game-based language learning as a complex adaptive system. CALICO Journal, 34(1), 39-57.

Serrano, R., & Huang, H. Y. (2018). Learning vocabulary through assisted repeated reading: How much time should there be between repetitions of the same text? TESOL Quarterly, 52(4), 971-994.

Shrum, J. L., & Glisan, E. W. (2009). Teacher’s handbook: contextualized language instruction. Boston, MA: Cengage Learning.

Stansfield, C. W. (1991). Idea Oral Language Proficiency Test. In K. Keyser and R. C. Sweetlands (Eds.), Test Critiques: Volume VIII. Austin, TX: Pro-Ed.

Sylvén, L. K., & Sundqvist, P. (2017). Computer assisted language learning (CALL) in extracurricular/extramural contexts. CALICO Journal, 34(1), i-iv.

Tabibian, B., Upadhyay, U., De, A., Zarezade, A., Schölkopf, B., & Gomez-Rodriguez, M. (2019). Enhancing human learning via spaced repetition optimization. Proceedings of the National Academy of Sciences. 116(10), 3988-3933.

Uberman, A. (1998). The use of games: For vocabulary presentation and revision. English Teaching Forum, 36(1), 20.

Wang, X. (2009). Second language theories and their influences on EFL in China. English Language Teaching, 2(4), 149–153. doi: 10.5539/elt.v2n4p149

Wenting, Z. (2019, January 24). Children make early start at learning English. China Daily. Retrieved from https://www.chinadailyhk.com/articles/141/213/135/1548312114049.html?newsId=60205

Yang, J. C., Lin, D., & Chen, S. (2018). Effects of anxiety levels on learning performance and gaming performance in digital game-based learning. Journal of Computer Assisted Learning. 34(3), 324-334.

Yang, J. C., Quadir, B., & Chen, N.-S. (2015). Effects of the badge mechanism on self-efficacy and learning performance in a game-based English learning environment. Journal of Educational Computing Research, 54(3), 371–394. doi: 10.1177/0735633115620433

Young, M. F., Slota, S., Cutter, A.B., Jalette, G., Mullin, G., Lai, B., Simeoni, Z., Tran, M., & Yukhymenko, M. (2012). Our princess is in another castle: A review of trends in serious gaming for education. Review of Educational Research. 82(1), 61-89. doi:10.3102/0034654312436980

Zhang, D. B. (2012). Chinese primary school English curriculum reform. In J. Ruan & C. B. Leung (Eds.), Perspectives on teaching and learning English literacy in China (pp. 67-83). Dordrecht, the Netherlands: Springer.

Zheng, D., Young, M. F., Brewer, R. A., & Wagner, M. (2009). Attitude and self-efficacy change: English language learning in virtual worlds. CALICO Journal, 27(1), 205-231.

Zhou, S. (2010). Comparing receptive and productive academic vocabulary knowledge of Chinese EFL learners. Asian Social Science, 6(10), 14-19. doi: 10.5539/ass.v6n10p14