Irma Br Siregar, Indawati Lestari. THE EFFECT OF PRODUCT QUALITY AND SERVICE QUALITY ON PURCHASING DECISIONS ON CHATIME SETIA BUDI MEDAN. IJSET [Internet]. 2025 Jul. 27 [cited 2025 Aug. 13];4(9):1081-8. Available from: https://ijset.org/index.php/ijset/article/view/790