Onyebuchi, OKOLO, Victor, et al. “The Philosophy Behind Boosting Sales: Would Sales Promotion Provoke the Immediate Sales of Beer Beverage Brands in Southeastern Nigeria?”. European Journal of Economics and Business Studies, vol. 12, no. 1, Apr. 2026, pp. 94-119, https://mentisia.org/index.php/ejes/article/view/1697.