Alkurtehe, Khaled Ali Mohammed, and Hisham Dzakiria. “An Overreview of the Sociocultural Theory and Vocabulary Development”. JEES (Journal of English Educators Society) 3, no. 1 (April 11, 2018): 41-50. Accessed May 9, 2024. https://jees.umsida.ac.id/index.php/jees/article/view/1605.