Erdiansyah, D. ., and E. S. . Imaningsih. “Analysis of Effects of Product Quality, Promotion and Received Value Towards Customer Loyalty through Customer Satisfaction Grab Food”. Journal of Business and Management Studies, vol. 3, no. 2, June 2021, pp. 01-11, doi:10.32996/jbms.2021.3.2.1.