Joni, Arvin, Nicholas Anderson, and Nurmaidah Ginting. 2021. “Brand, Service Quality, and Product Quality Towards Customers Purchasing Decisions at PT. Wahana Jaya Raya Medan”. Jurnal Mantik 4 (4):2468-72. https://doi.org/10.35335/mantik.Vol4.2021.1194.pp2468-2472.