Chusnatayaini, Arina, and Siti Nafi’yah. “Using Whatsapp for Learning to Enhance Students’ Vocabulary Achievement”. English Education:Journal of English Teaching and Research 9, no. 2 (October 31, 2024): 198–215. Accessed December 22, 2024. https://ojs.unpkediri.ac.id/index.php/inggris/article/view/23295.