Hutasoit, SE., MSi., MSE, Posma Sariguna Johnson Kennedy, Priskila Theodora Simanjuntak, and Fenny BNL Tobing. 2017. “Analysis of Customer Loyalty: An Empirical Study of The Product IM3 Indosat on FEUKI Student”. Fundamental Management Journal 1 (01), 32-43. https://doi.org/10.33541/fjm.v1i01.193.