Pendekatan kontrol strata yang efektif pada masalah ketidakmantapan terowongan dan panel longwall (Effective strata control approach to instability problems of longwall roadways and panels#S. Koesnaryo
| Main Author: | KOESNARYO, S. |
|---|---|
| Format: | TEXT |
| Published: |
Fak. Teknologi Mineral UPN "Veteran"
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| Subjects: |