Sara Samaran, Mira, et al. “Persepsi Siswa Terhadap Pembelajaran Matematika Secara Daring Menggunakan Aplikasi Class Room Dalam Masa Pandemi Covid-19”. Mandalika Mathematics and Educations Journal, vol. 4, no. 1, June 2022, pp. 33-40, https://jurnalfkip.unram.ac.id/index.php/MANDALIKA/article/view/3163.