Astuti, Astuti, Siti Rahmy Maulidya, Rian Aristi, and Sinta Agustina. “Whatsapp Dalam Pembelajaran Online Dimasa Pandemi Covid 19 Di MTs Alhutsaimin Pada Mata Pelajaran Matematika”. Jurnal Pendidikan Tambusai 5, no. 1 (February 13, 2021): 3637–3642. Accessed March 4, 2025. http://jptam.org/index.php/jptam/article/view/25167.