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3by PAARDEKOOPER EC, FAO, Rome (Italy) eng, Balai Penelitian Perkebunan, Medan (Indonesia) oth
Published 1974Texto bibliotecaFAO IT -
4by Paardekooper, E.C., FAO, Rome (Italy). Plant Production and Protection Div. eng, Balai Penelitian Perkebunan, Medan (Indonesia) oth
Published AugTexto bibliotecaFAO IT -
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6by Toxopeus, H., FAO, Rome (Italy). Plant Production and Protection Div. eng, Hutomo, T., Balai Penelitian Perkebunan, Medan (Indonesia) oth
Published JunTexto bibliotecaFAO IT