Dermawan, Arief. “THE EFFECT OF SERVICE QUALITY, PRODUCT EXELLENCE AND PROMOTION ON CONSUMER SATISFACTION CV. PRIMAJAYA SARANA”. Strategic Management Business Journal 2, no. 01 (July 31, 2022): 50–56. Accessed May 21, 2025. https://journal.smbjupmi.com/index.php/smbj/article/view/27.