Não informado. (1979). Annals of Tropical Research. Visayas State College of Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annals of Tropical Research. Baybay Leyte, Filipinas: Visayas State College of Agriculture, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annals of Tropical Research. Visayas State College of Agriculture, 1979.
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