HARAHAP, R. .; SISWADI, siswadi; HIDAYAT, M. A. PEMAHAMAN KONSEP MATEMATIS SELAMA MASA PANDEMI COVID-19. OMEGA: Jurnal Keilmuan Pendidikan Matematika, [S. l.], v. 1, n. 2, p. 29–36, 2022. DOI: 10.47662/jkpm.v1i2.230. Disponível em: https://univamedan.ac.id/ejurnal/index.php/jkpm/article/view/230. Acesso em: 4 may. 2024.