MUHAMMAD HARFIN ZUHDI; MUHAMMAD SHEVA MAULAYA ZUHDI; ARINO BEMI SADO; AHMAD SAIFUL HAQ ALMUHTADI; MUHAMMAD DIMAS FIRDAUS. Unifying the Hijri Calendar: A Fiqh al-Siyāsa Model for Legal Authority and Certainty. Al-Ahkam, [S. l.], v. 36, n. 1, p. 165–190, 2026. DOI: 10.21580/ahkam.2026.36.1.29009. Disponível em: https://journal.walisongo.ac.id/index.php/ahkam/article/view/29009. Acesso em: 18 jul. 2026.