Tussifah, H., and Z. Annisa’. “Pengaruh Voucher Price Discount, Customer Experience, Dan Customer Satisfaction Terhadap Customer Loyalty Pada Sistem Pengiriman Paket Roya Mantingan”. Insight Management Journal, vol. 4, no. 2, Jan. 2024, pp. 86-95, doi:10.47065/imj.v4i2.317.