Attachoo, B., & Chaturongakul, P. (2015). A Study of Vocabulary Size, Competency, Learning Strategies, and Perceptions of Problems with Vocabulary Learning of Students with Learning Disabilities. LEARN Journal: Language Education and Acquisition Research Network, 8(2), 59–83. Retrieved from https://so04.tci-thaijo.org/index.php/LEARN/article/view/102674