Sundari, Eva, Iyoyo Dianto, Hamsal Hamsal, and Imam Hanafi. “The Effect of Product Diversification on Purchasing Decisions at Mandau Bakery Kota Duri Store”. Global Academy of Multidisciplinary Studies 1, no. 1 (August 26, 2025): 47–58. Accessed October 3, 2025. https://goodwoodpub.com/index.php/gams/article/view/3374.