Suheri C, Wahab Z, Widiyanti M, Shihab MS. The effect of price perception and sales promotion on the purchase decision of the pertamax turbo in Palembang City. Int. j. humanit. lit. arts [Internet]. 2021Dec.28 [cited 2026Apr.17];5(1):5-10. Available from: https://sloap.org/journal/index.php/ijhla/article/view/1810