HARLENI, S.; ESPRESIA, E. ANALISIS KESULITAN BELAJAR SISWA POKOK BAHASAN ALJABAR DALAM PEMBELAJARAN DARING DI ERA COVID-19. Serunai : Jurnal Ilmiah Ilmu Pendidikan, [S. l.], v. 7, n. 1, p. 01–09, 2021. DOI: 10.37755/sjip.v7i1.393. Disponível em: https://ejournal.stkipbudidaya.ac.id/index.php/ja/article/view/393. Acesso em: 10 jun. 2026.