NURJAMAN, K.; SUPRIATNA, E.; ROJUDIN. Quality Assurance Model of Hajj and Umrah Guidance Groups (KBIHU) Based on Islamic Boarding Schools in Serving Prospective Pilgrims: A Case Study of KBIHU Organized by Islamic Boarding Schools in West Java Province. TEC EMPRESARIAL, [S. l.], v. 20, n. 1, p. 102–116, 2025. Disponível em: http://revistas.tec-ac.cr/index.php/tec_empresarial/article/view/540. Acesso em: 3 jul. 2026.