Andreani, F., Sumargo, Y., & Lie, C. (2013). THE INFLUENCE OF CUSTOMER RELATIONSHIP MANAGEMENT (CRM) ON CUSTOMER LOYALTY IN JW MARRIOTT HOTEL SURABAYA. Jurnal Manajemen Dan Kewirausahaan, 14(2), 156-163. https://doi.org/10.9744/jmk.14.2.156-163