Istihsan in Determination of the Lunar Month: Jurisprudential Flexibility for Harmonizing the Ummah. Sinthop: Media Kajian Pendidikan, Agama, Sosial dan Budaya, [S. l.], v. 4, n. 1, p. 122–134, 2025. DOI: 10.69548/sinthop.v4.i1.33.123-135. Disponível em: https://journal.sinthop.org/ojs/article/view/33. Acesso em: 4 feb. 2026.