ACTFL. (2012). ACTFL performance descriptors for language learners. The American Council on the Teaching of Foreign Languages. http://k4va.bozheng.net/sites/default/files/publications/ACTFLPerformance_...
ACTFL. (2019). Making languages our business: Addressing foreign language demand among U.S. employers. The American Council on the Teaching of Foreign Languages. http://www.leadwithlanguages.org/wp-content/uploads/MakingLanguagesOurB...
Bialystok, E. (2017). The bilingual adaptation: How minds accommodate experience. Psychological Bulletin, 143(3), 233–262. http://doi.org/10.1037/bul0000099
Bitchener, J. (2019). The intersection between SLA and feedback research. In K. Hyland & F. Hyland (Eds.), Feedback in second language writing: Contexts and issues (pp. 85–105). Cambridge University Press.
Campbell, E., & Storch, N. (2011). The changing face of motivation a study of second language learners’ motivation over time. Australian Review of Applied Linguistics, 34(2), 166–192. http://doi.org/10.1075/aral.34.2.03cam
Darvin, R., & Norton, B. (2016). Investment and language learning in the 21st century. Langage et Société, 157(3), 19-38. http://doi.org/10.3917/ls.157.0019
Dörnyei, Z., & Al-Hoorie, A. H. (2017). The motivational foundation of learning languages other than global English: Theoretical issues and research directions. Modern Language Journal, 101(3), 455–468. http://doi.org/10.1111/modl.12408
Gardner, R. C. (2019). The socio-educational model of second language acquisition. In M. Lamb, K. Csizér, A. Henry, & S. Ryan (Eds.), The Palgrave handbook of motivation for language learning (pp. 21–37). Springer.
González-Lloret, M. (2020). Collaborative tasks for online language teaching. Foreign Language Annals, 53(2), 260–269. http://doi.org/10.1111/flan.12466
Huber, J. (Ed.). (2012). Intercultural competence for all: Preparation for living in a heterogeneous world. Council of Europe. http://rm.coe.int/intercultural-competence-for-all/16808ce20c
Huhtala, A., Kursiša, A., & Vesalainen, M. (2019). “This language still motivates me!" Advanced language students and their L2 motivation. Studies in Second Language Learning and Teaching, 9(2), 287–311. http://doi.org/10.14746/ssllt.2019.9.2.3
Ibrahim, Z., & Al-Hoorie, A. H. (2019). Shared, sustained flow: Triggering motivation with collaborative projects. ELT Journal, 73(1), 51–60. http://doi.org/10.1093/elt/ccy025
Lee, J. S. (2020). The role of grit and classroom enjoyment in EFL learners’ willingness to communicate. Journal of Multilingual and Multicultural Development. Advance online publication. http://doi.org/10.1080/01434632.2020.1746319
Nagle, C. (2021). Using Expectancy Value Theory to understand motivation, persistence, and achievement in university-level foreign language learning. Foreign Language Annals. Advance online publication. http://doi.org/10.1111/flan.12569
Norton, B., & De Costa, P. I. (2018). Research tasks on identity in language learning and teaching. Language Teaching, 51(1), 90–112. http://doi.org/10.1017/S0261444817000325
Ortega, L. (2009). Understanding second language acquisition. Hodder Education.
Perani, D., & Abutalebi, J. (2015). Bilingualism, dementia, cognitive and neural reserve. Current Opinion in Neurology, 28(6), 618–625. http://doi.org/10.1097/WCO.0000000000000267
Ramírez-Esparza, N., García-Sierra, A., & Jiang, S. (2020). The current standing of bilingualism in today’s globalized world: A socio-ecological perspective. Current Opinion in Psychology, 32, 124–128. http://doi.org/10.1016/j.copsyc.2019.06.038
Rubio, F. (2007). Self-esteem and foreign language learning: An introduction. In F. Rubio (Ed.), Self-esteem and foreign language learning (pp. 2-14). Cambridge Scholars Publishing.
Xie, Z. (2018). The influence of second language (L2) proficiency on cognitive control among young adult unblanced Chinese-English bilinguals. Frontiers in Psychology, 9, 1-9. http://doi.org/10.3389/fpsyg.2018.00412
Winke, P. (2022). How to reach advanced language proficiency. ACTFL Research Briefs.