Ramadhan Harahap, Wahyu, Ricka Handayani, Krisna, Elli Tri Hartati Harahap, Efrida Wardani Hutapea, and Mutiara Indah Siregar. 2025. “Pilgrim Satisfaction and the Effectiveness of Religious Tourism Services: Evidence from Umrah Operations”. Jurnal Manajemen Dakwah 6 (1):13-26. https://e-journal.iainptk.ac.id/index.php/j-md/article/view/4576.