P. Fajri M, K. M Khoiril M, A. Priscilla P P, S. Risa, and M. Raditya J T, “PENGARUH PROGRAM CUSTOMER RELATIONSHIP MANAGEMENT (CRM) TERHADAP LOYALITAS PELANGGAN SHOPEE INDONESIA”, JRSIT, vol. 1, no. 1, pp. 17–25, Aug. 2023.