Riza Putera, Anisa Santoso, Irene Sondang, Oky Pratama, Garrin Nandhito, and Esty Suyanti, “EFFICIENCY OF PUBLIC TRANSPORTATION USING GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS)”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 13, no. 36, pp. 26–30, Aug. 2017.