Rikky Alfadilah, and Aris Budiono. “The Impact of Product Quality, Price Perception, and Promotion on Consumer Purchase Decision at Esperto”. Journal of Economics and Business (JECOMBI), vol. 6, no. 03, May 2025, pp. 213-26, https://jecombi.seaninstitute.or.id/index.php/JECOMBI/article/view/122.