Cai, Wei, Xiangrong Li, and Meihua Liu. “Academic and Linguistic Gains During a Semester-Long Study Abroad: A Cohort Case Study”. Studies in Second Language Learning and Teaching 3, no. 4 (October 1, 2013): 505–522. Accessed May 4, 2024. https://pressto.amu.edu.pl/index.php/ssllt/article/view/5025.