“THE EFFECT OF PRICE, PRODUCT QUALITY, SERVICE QUALITY, AND PROMOTION ON CUSTOMER LOYALTY OF SNOWHITE SKINCARE GRAND DEVINA BEAUTY CLINIC MALANG REGENCY”, KISA INSTITUTE, vol. 1, no. 9, pp. 14–23, Aug. 2024, Accessed: Nov. 12, 2025. [Online]. Available: https://kisainstitute.com/index.php/kisainstitute/article/view/37