Benedict, M. C. ., and A. A. Shabdin. “A Comparison of the Vocabulary Learning Strategies Employed by High and Low Proficient Pre-University Students in Malaysia”. LEARN Journal: Language Education and Acquisition Research Network, vol. 14, no. 2, July 2021, pp. 222-46, https://so04.tci-thaijo.org/index.php/LEARN/article/view/253268.