Author Details

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T.B.M. Petrus, Himawan, Unconventional Geo-resources Research Group, Faculty of Engineering, Universitas Gadjah Mada, Indonesia

  • Vol 7, No 3 (2020) - Articles
    Preliminary Study of Rare Earth Element and Yttrium (REY) Content of Coal In Sangatta Coalfield, East Kalimantan, Indonesia
    Abstract  PDF


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