Kondisi umum pertambangan emas Pongkor : Buku penuntun praktek ukur tambang#Hasywir Thaib Siri
| Main Author: | SIRI, Hasywir Thaib |
|---|---|
| Format: | TEXT |
| Published: |
Teknik Pertambangan FTM UPN "Veteran"
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| Subjects: |
| Description not available. |