Pamplona, P. P. (2013). Philippine rubber farming: New rubber clones show high yield potential and early production. Agriculture.
Chicago-referens (17:e uppl.)Pamplona, Pablito P. "Philippine Rubber Farming: New Rubber Clones Show High Yield Potential and Early Production." Agriculture 2013.
MLA-referens (9:e uppl.)Pamplona, Pablito P. "Philippine Rubber Farming: New Rubber Clones Show High Yield Potential and Early Production." Agriculture, 2013.
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