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    Institutional review of the geological survey and mines bureau (GSMB) (2022-2024) / by Wijayananda, N. P.

    Published 2026
    Book
  4. 4

    Beach mineral sands in sri lanka : occurrence, global trends and current issues. by Herath, M. M. J. W.

    Published 2017
    Book
  5. 5

    ශ්‍රී ලංකාවේ මිනිරන් : එදා, අද සහ හෙට...
    [Sri Lankave miniran] :[eda, ada saha heta...]
    by සෙනවිරත්න, නිරෝෂන්

    Published 2019
    Book
  6. 6

    sri Lanka Beach mineral sands : occurrence, global trends and current issues by Herath, M. M. J. W.

    Published 1996
    Book
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