Lubis, Nuraini, Abdul Mujib, and Yenni Sriwahyuni. “GURU KELILING (GULING) PADA MASA PANDEMI COVID-19”. Integral : Pendidikan Matematika 11, no. 2 (December 27, 2020): 28–39. Accessed July 22, 2024. https://e-journal.umc.ac.id/index.php/JNR/article/view/1752.