Ispen Safrel
- Accuracy Comparison between GPS Real Time Kinematic (RTK) Method and Total Station to Determine The Coordinate of An Area. Dans: Jurnal Teknik Sipil dan Perencanaan, v. 20, n. 2 (novembre 2018). (2018):
- High Accuracy Geodetic Control Point Measurement Using GPS Geodetic With Static Methods. Dans: Jurnal Teknik Sipil dan Perencanaan, v. 20, n. 2 (novembre 2018). (2018):