AMRIN; MUHAMMAD DWI FAJRI; SUHERMAN, E.; FITRIYAH, M.; AMELIA, I. Reconceptualizing Islamic Calendar Determination: An Integrative Ushul Fiqh and Astronomical Approach. Al-Ahkam: Jurnal Ilmu Syari’ah dan Hukum, [S. l.], v. 11, n. 1, p. 67–84, 2026. DOI: 10.22515/alahkam.v11i1.11345. Disponível em: https://ejournal.uinsaid.ac.id/al-ahkam/article/view/11345. Acesso em: 8 oct. 2026.