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  1. 1

    Philippine rubber farming new rubber clones show high yield potential and early production 由 Pamplona, Pablito P.

    发表在 Agriculture (2013)
    文件

    Philippine rubber farming new rubber clones show high yield potential and early production
  2. 2

    Rubber check to forest denudation 由 Macatuno, Ernie

    发表在 Sunday Times Magazine (1972)
    文件

    Rubber check to forest denudation

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