Sembiring, R. et al. 2025. 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. 3, 2 (Apr. 2025), 180–192. DOI:https://doi.org/10.61402/sajmr.v3i2.353.