CAHYANINGRUM, D. A.; BUDIATI, B. Influence of product quality, price perception, and promotion on purchasing decisions for Samsung smartphones (study at CM Cellular Counter Mranggen Demak). TAMBUN – Theory and Application in Management, Business, and the Unity of Nations, [S. l.], v. 1, n. 1, p. 17–28, 2025. DOI: 10.59651/tambun.v1i1.287. Disponível em: https://ejournal.cria.or.id/index.php/TAMBUN/article/view/287. Acesso em: 7 may. 2026.