Susanti, Vera Dewi, Ika Krisdiana, Wasilatul Murtafiah, Reza Kusuma Setyansah, and Titin Masfingatin. 2021. “YouTube Vlog Channels in Basic Mathematics As E-Learning During the COVID-19 Pandemic”. PYTHAGORAS Jurnal Matematika Dan Pendidikan Matematika 16 (1):114-26. https://doi.org/10.21831/pg.v16i1.40932.