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| Bijih Nikel, Cadangan, Metalurgi, Nikel Laterit, Pengolahan, Pemurnian, Sponge Feronikel, Teknis, dan Keekonomian (2) |
| Nickel Ore, Reserve, Metallurgy, Laterite Nickel, Processing, Purification, Sponge Ferronickel, Technical, and Economic. (2) |
| Proceedings of Mining Engineering (2) |
| Teknik Pertambangan (2) |
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