Ahtisya, Syauqi, Herdianto Herdianto, Diva Dinar Fasya, and Jerry Heikal. “Analyzing the Influence of Promotion on Consumer Purchase Decisions Using a Binary Logistic Regression Model in Car Salon Services”. Economic Reviews Journal 4, no. 4 (January 27, 2026): 2720 –. Accessed May 7, 2026. https://www.mes-bogor.com/journal/index.php/mrj/article/view/984.