MAULANA, Alvito; 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, [S. l.], v. 4, n. 1, p. 2207 – 2219, 2026. Disponível em: https://e-journal.bustanul-ulum.id/index.php/danadyaksa/article/view/451. Acesso em: 9 sep. 2026.