Ramadhan Nurmuhammad, Endang Sulistya Rini, Amrin Fauzi. ANALYSIS OF THE RELATIONSHIP OF PRODUCT QUALITY, SERVICE QUALITY, PRICES AND PROMOTIONS ON BUYING DECISION (STUDY AT NINE WALI MEDAN SHOPS). IJSET [Internet]. 2024 Jan. 12 [cited 2025 Sep. 11];3(2):183-9. Available from: https://ijset.org/index.php/ijset/article/view/338