Iskandar, Erwan, et al. “The Effect of Customer Service Quality on Customer Engagement to Use Indosat Ooredoo Products: A Case of Indosat Ooredoo Store Wahidin Cirebon”. Journal of Enterprise and Development (JED), vol. 4, no. 1, June 2022, pp. 12-17, doi:10.20414/jed.v4i1.4612.