Kurniawan, Muh Idham. “PENERAPAN ANALISIS KORELASI SPEARMAN’S RANK PADA WAITING LIST JAMAAH HAJI DI INDONESIA”. Mabrur: Academic Journal of Hajj and Umra 2, no. 2 (August 30, 2024): 83–94. Accessed December 6, 2025. https://journal.uinsgd.ac.id/index.php/mabrur/article/view/33174.