HIDAYAT, Marzul; HARTONO, Rudi. Leadership Strategies and Policies on Online Learning during the Covid-19 Pandemic: A Case Study . Indonesian Research Journal in Education |IRJE|, [S. l.], v. 5, n. 2, p. 544–559, 2021. DOI: 10.22437/irje.v5i2.16749. Disponível em: https://www.online-journal.unja.ac.id/irje/article/view/16749. Acesso em: 16 apr. 2026.