YUSUFA, E. E. The Relationship Between a Linear Equations System of COVID-19 and the Faithfulness to Allah SWT. Kaunia: Integration and Interconnection Islam and Science Journal, [S. l.], v. 17, n. 2, p. 41–45, 2021. DOI: 10.14421/kaunia.3141. Disponível em: https://ejournal.uin-suka.ac.id/saintek/kaunia/article/view/3141. Acesso em: 20 jan. 2025.