Simorangkir, Niastyna. “THE INFLUENCE OF POSITIONING AND PRODUCT DIFFERENTIATION ON INTEREST IN BUYING PT GRAHA ALUMINUM PRODUCT MEDAN”. Journal of Financial Management & Accounting 1, no. 1 (March 9, 2024): 33–39. Accessed August 2, 2025. https://journal.trasaka.com/index.php/JoFIMA/article/view/15.