Rinaldi, Ricky, Sulastri Sulastri, Zakaria Wahab, and Marlina Widiyanti. “The Effect of Quality of Service, Promotion and Prices on Customer Satisfaction of Semen Baturaja”. International journal of business, economics and management 5, no. 3 (July 4, 2022): 125-130. Accessed April 17, 2025. https://sloap.org/journal/index.php/ijbem/article/view/1907.