RUSFIAN, E. Z.; EVALINA, E.; AHMADDIEN, I. . . Effects of Price, Promotion, and Product Quality on Customer Satisfaction of Oppo Smartphone. Jurnal Mantik, [S. l.], v. 5, n. 4, p. 2601-2606, 2022. Disponível em: https://www.iocscience.org/ejournal/index.php/mantik/article/view/2046. Acesso em: 13 jun. 2026.