Arfiyan Ridwan. “CALL (Computer Assisted Language Learning) As a Means of Professional Development of EFL Teachers in Indonesia: A Vygotsky’s Sociocultural Perspective”. SELL (Scope of English Language Teaching, Linguistics, and Literature) Journal 2, no. 2 (November 16, 2020): 162–172. Accessed May 4, 2025. http://publikasi.stkippgri-bkl.ac.id/index.php/SL/article/view/522.