Madina, Sarah. “The Study of Speech Acts in Online Discussion Study of ELT Classroom”. Modality Journal: International Journal of Linguistics and Literature 2, no. 1 (June 30, 2022): 40–49. Accessed March 12, 2026. https://ejournal.uinbukittinggi.ac.id/index.php/modality/article/view/5597.