Sitthitikul, Pragasit. “Discussion Paper (Understanding L2 Acquisition in English Language Learners: The Interplay of Age-Related, Cognitive, and Sociocultural Factors and Their Implications for Instructional Practices)”. Journal of Studies in the English Language 4 (June 10, 2009): 185–193. Accessed May 1, 2024. https://so04.tci-thaijo.org/index.php/jsel/article/view/22070.