Febrianti, Elsa. “Development of Course Booking System (Front-End & Back-End) Based on Mobile Application to Help Tutoring Elementary and Junior High School in Indonesia”. [CEPAT] Journal of Computer Engineering: Progress, Application and Technology, vol. 1, no. 01, May 2022, pp. 34-46, doi:10.25124/cepat.v1i01.4852.