Andersen, Fedrik (2019) The influence of service quality towards customer loyalty at pt. maju jaya medan. Bachelor thesis, Universitas Pelita Harapan.

Holmen, Felix (2019) The impact of entrepreneurship training on business performance at stationery distributor in medan. Bachelor thesis, Universitas Pelita Harapan.

Salim, Claudia Permata (2019) Analysis of service quality to customer satisfaction at pt raya utama travel. Bachelor thesis, Universitas Pelita Harapan.