Marpaung, Marlin Steffi, and Hardi Jhon Pinondang Situmeang. “Enhancing Students’ Vocabulary through Authentic Materials and Multimedia”. Acuity: Journal of English Language Pedagogy, Literature and Culture 5, no. 2 (October 15, 2020): 85-101. Accessed April 24, 2024. https://jurnal.unai.edu/index.php/acuity/article/view/2247.