Pramono, N. ., H. Haerudin, J. Jumai, and N. Nurhayati. “The Effect of Promotion, Service Quality, and Price on Customer Satisfaction of Bang-Jek Blora Service Users”. 2024. Economics and Business International Conference Proceeding, vol. 1, no. 2, Nov. 2024, pp. 585-96, https://jurnalnew.unimus.ac.id/index.php/EBiC/article/view/468.