Sari, Preti Intan, Hendra Hermain, and Aqwa Naser Daulay. “ Influence of Price, Promotion, and Product Quality on Boba Drink Purchase Decisions Through Recommendations As Intervening Variables (Boba Qiuqiunian Drinking Business Case Study)”. Quantitative Economics and Management Studies 5, no. 5 (August 3, 2024): 1043–1052. Accessed May 1, 2026. https://qemsjournal.org/index.php/qems/article/view/2845.