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PT GEOSAIN DELTA ANDALAN

Mayapada Tower 1, 7th Floor
Jl. Jend. Sudirman Kav. 28,
Jakarta Selatan 12920

E-mail: gda@gda.co.id / achmad@gda.co.id
Phone: +6221-5212-189
Mobile: +62815-2031-6899