BADI', Ahmad. PENENTUAN AWAL BULAN RAMAAN; Kajian Lintas Mahab dan Organisasi Islam Di Indonesia. Tribakti: Jurnal Pemikiran Keislaman, [S. l.], v. 26, n. 2, p. 362–385, 2016. DOI: 10.33367/tribakti.v26i2.222. Disponível em: https://ejournal.uit-lirboyo.ac.id/index.php/tribakti/article/view/222. Acesso em: 3 feb. 2026.