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  1. 1

    Saltpeter the mother of gunpowder מאת Cressy, David

    יצא לאור 2013
    ספר

    Saltpeter the mother of gunpowder
  2. 2

    Potassium nitrate from pepperomia pellucida מאת Lopez, Gener J.

    יצא לאור 1987
    Thesis

    Potassium nitrate from pepperomia pellucida
  3. 3

    Isolation of potassium nitrate from Peperomia pellucida (L) Hbk (Fam. Piperaceae) מאת Minoza, Aurora C.

    Thesis

    Isolation of potassium nitrate from Peperomia pellucida (L) Hbk (Fam. Piperaceae)

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