Selfiani. “PERSPECTIVES OF HAJJ AND UMRAH ORGANIZERS DURING A PANDEMIC ON GOVERNANCE, FACILITIES, STRATEGIES AND COMPETITIVE ADVANTAGE”. International Journal Mathla’ul Anwar of Halal Issues 2, no. 2 (September 20, 2022): 40–55. Accessed November 2, 2025. https://journal.halalunmabanten.id/index.php/ijma/article/view/60.