Alkurtehe, Khaled Ali Mohammed, and Hisham Dzakiria. 2018. “An Overreview of the Sociocultural Theory and Vocabulary Development: Tinjauan Singkat Teori Sosial Budaya Dan Pengembangan Kosakata”. JEES (Journal of English Educators Society) 3 (1):41-50. https://doi.org/10.21070/jees.v3i1.1227.