Ikhwanul Hakim, Suwignnyo Widagdo, and Yuniorita Indah Handayani. “Assess and Measure Retentions Rates Through Satisfaction”. Wiga : Jurnal Penelitian Ilmu Ekonomi 11, no. 2 (September 30, 2021): 155–169. Accessed May 19, 2024. http://ejournal.itbwigalumajang.ac.id/index.php/wiga/article/view/646.