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  1. 1
    Risiko hingar di kalangan operator jentera berat perlombongan arang batu : kajian kes di Pt Cipta Kridatama Logas Riau, Indonesia /
    由 Permata, Ikie Gilang
    出版 2004
    Thesis 圖書
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  2. 2
    Hazard identification and risk assessment on safety, health and environmental at two coal mining site in Kalimantan, Indonesia /
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  3. 3
    Geochemical characterisation of the late cretaceous coal and mudstones from gombe formation, gongola sub-basin, Northern Benue Trough, Kenya /
    由 Ayoola, Ayinla Habeeb
    出版 2018
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