Harahap, Khofifah, Miftahu Rizqoh, Susmitra Muhammad Effendi, Weli Andriani, and Muhammad Taufik Ihsan. “The Advantage of Using Edmodo in English Instruction”. ETDC: Indonesian Journal of Research and Educational Review 1, no. 1 (December 27, 2021): 100–111. Accessed August 24, 2025. https://www.etdci.org/journal/ijrer/article/view/45.