LAYLI ROHMATILLAH; WILDA TUL ULUF. Umrah Worship Service Strategy Management at PT Darul Arqam Travel Tour Kraksaan Probolinggo. HARAMAIN: Jurnal Manajemen Bisnis, [S. l.], v. 5, n. 01, p. 09–19, 2025. DOI: 10.66931/jmb-167. Disponível em: https://e-journal.ibama.ac.id/index.php/jmb/article/view/167. Acesso em: 8 sep. 2026.