- Johanna Ratna Sari
- Data Base.
- Address:Permata Harapan Baru Blok B6 / 1
- Primera Indosurvey, Inc.
- Total Station, Robotic Total Station, GPS Survey, Base Rover, GPS RTK, GNSS, Glonass, Automatic Level, Digital Level, Laser Level, Data Collector, Controller.
- Address:Jl. Ciroyom No. 105 Bandung Jawa Barat 40183 Indonesia
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