The study of service innovation for kartu halo Telkomsel on customer loyalty = Studi inovasi servis kartu halo Telkomsel terhadap kesetiaan pelanggan

Pengaruh kualitas pelayanan terhadap kepuasan dan loyalitas pelanggan (Studi pada pelanggan Telkomsel terkait kasus pencurian pulsa aktivasi RBT) = Quality service and satisfaction customer loyalty (Studies in Telkomsel RBT subscriber)

Pengaruh inovasi jasa terhadap loyalitas pelanggan: studi pada mobile application t-bike Telkomsel = The effect of service innovation toward customer loyalty: study in t-bike Telkomsel mobile application

Pengaruh E-Service Quality terhadap E-Customer Loyalty dengan E-Customer Satisfaction sebagai Variabel Mediasi pada Pengguna Blibli di Jabodetabek = The Effect of E-Service Quality on E-Customer Loyalty with E-Customer Satisfaction as a Mediating Variable for Blibli Users in Jabodetabek

Pengaruh inflight service quality terhadap customer loyalty melalui customer satisfaction: studi pada pelanggan Garuda Indonesia = The effect of inflight service quality towards customer loyalty through customer satisfaction: case of Garuda Indonesia's customer