Kurniawan R, Hustianto FR, Z. THE EFFECT OF PRODUCT MIX ON CUSTOMERS’ LOYALTY (A Study at PT. Bank BTN Sukabumi City). CAC [Internet]. 2022 Jan. 30 [cited 2024 Jul. 28];23(1):3372-8. Available from: https://ca-c.org/CAC/index.php/cac/article/view/306