H. Basri dan S. Atqo Abdillah, Penerj., “ANALISIS KUALITAS PELAYANAN TRAVEL UMRAH AR RAUDHAH MENGGUNAKAN PENDEKATAN IMPORTANCE PERFORMANCE ANALYSIS (IPA)”, armuzna-mhu, vol. 2, no. 1, hlm. 29–43, Jun 2025, Diakses: Okt 21, 2026. Tersedia pada: https://ejurnal.unik-cipasung.ac.id/index.php/armuzna/article/view/65