ASHA, Lukman. Online Learning Problems and the Principal’s Efforts to Overcome the Problems. AL-ISHLAH: Jurnal Pendidikan, [S. l.], v. 13, n. 2, p. 1247–1258, 2021. DOI: 10.35445/alishlah.v13i2.932. Disponível em: https://www.alishlah.ahfpublishing.id/alishlah/article/view/932. Acesso em: 14 oct. 2026.