Hayati, Nur, and Hidayah Nor. “The Role of Flip Charts in Improving English Vocabulary Acquisition”. TEFLA Journal (Teaching English as Foreign Language and Applied Linguistics Journal) 5, no. 2 (December 30, 2023): 67–78. Accessed January 9, 2025. http://journal.mbunivpress.or.id/index.php/TEFLA/article/view/1082.