Nani, N., Agus Halim, and J Fuji Inzani SL Inzani S.L. “The Effect of Product Differentiation and Brand Image on Purchasing Decisions ”. Golden Ratio of Marketing and Applied Psychology of Business 4, no. 2 (June 30, 2024): 212–219. Accessed August 10, 2026. https://www.goldenratio.id/index.php/grmapb/article/view/684.