Suprihono S, Zaman K, Pratama DPA. The Effect of Price Discounts and Sales Promotions on the Increase of Medicine Sales Volume at PT MBF Surabaya. DIJMS [Internet]. 2025 Oct. 20 [cited 2026 Jun. 6];7(1):199-208. Available from: https://www.dinastipub.org/DIJMS/article/view/5576