Maulana, Alvito, and Sumiyati Sumiyati. “The Effect of Product Quality and Brand Image on Customer Loyalty in Purchasing Soy Sauce at PD Rusa Dua in Singkawang City”. Danadyaksa: Post Modern Economy Journal 4, no. 1 (September 1, 2026): 2207 – 2219. Accessed September 8, 2026. https://e-journal.bustanul-ulum.id/index.php/danadyaksa/article/view/451.