SAIFURROHMAN, Ahmad; AZZAFI, Ashif. ANALISIS USHUL FIKIH MENGENAI KALENDAR ISLAM DALAM KONTEKSTUALISASI NASH-NASH HISAB DAN RUKYAT. Ahkam: Jurnal Hukum Islam, [S. l.], v. 8, n. 2, p. 373–396, 2020. DOI: 10.21274/ahkam.2020.8.2.373-396. Disponível em: https://ojstrial.uinsatu.ac.id/index.php/ahkam/article/view/2880. Acesso em: 19 nov. 2025.