SEMBIRING, Rezeki; WIJAYA, Muslim; SURYANI, Wan. The Influence of Price and Promotion Strategy On Purchasing Decisions For Oppo Smartphones In Ujung Teran Village, Tigalingga Sub-District, Dairi District. SAJMR : Southeast Asian Journal of Management and Research, [S. l.], v. 3, n. 2, p. 180–192, 2025. DOI: 10.61402/sajmr.v3i2.353. Disponível em: https://journal.yayasanpad.org/index.php/sajmr/article/view/353. Acesso em: 28 mar. 2026.