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  1. 1

    Isolation and characterization of zinc resistant bacteria from an inactive black sand mining site in Dagupan City, Pangasinan מאת Arroyo, Patricia Kaye, Cachola, Lorenz Bryan, Sunga, Gabriel

    יצא לאור 2018
    קבל טקסט מלא
    Thesis

    Isolation and characterization of zinc resistant bacteria from an inactive black sand mining site in Dagupan City, Pangasinan
  2. 2

    River sand mining and management a case of Cau River in Bac Ninh Province, Vietnam מאת Nguyen Mau Dung

    יצא לאור 2011
    ספר

    River sand mining and management a case of Cau River in Bac Ninh Province, Vietnam
  3. 3

    Policy options for sustainable river sand mining in Sri Lanka מאת Gunaratne, L.H.P

    יצא לאור 2010
    ספר

    Policy options for sustainable river sand mining in Sri Lanka
  4. 4

    Guidelines in the acquisition of permit for sand and gravel and other construction materials

    יצא לאור 1990
    ספר

    Guidelines in the acquisition of permit for sand and gravel and other construction materials

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