HARAHAP, W. A. I.; ANASOM. Optimization of Hajj and Umrah Services: Strategic Management of Semarang Islamic Center Hajj Dormitory. International Journal of Economics Development Research (IJEDR), [S. l.], v. 4, n. 4, p. 1987–1996, 2023. DOI: 10.37385/ijedr.v5i1.4602. Disponível em: https://journal.yrpipku.com/index.php/ijedr/article/view/4602. Acesso em: 23 jul. 2025.