Nurjaman, K., Supriatna, E., & Rojudin. (2025). 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, 20(1), 102–116. Retrieved from http://revistas.tec-ac.cr/index.php/tec_empresarial/article/view/540