Tarisman, and Hilaluddin Hanafi. “The Effect of Whatsapp in A Flipped Classroom on Students’ Writing Achievement at MTsN 1 Konawe”. Advances in Social Sciences Research Journal 6, no. 12 (January 2, 2020): 253–268. Accessed April 25, 2024. https://journals.scholarpublishing.org/index.php/ASSRJ/article/view/7550.