Farm primer. Philippine Council for Agriculture, Forestry and Natural Resources Research and Development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFarm Primer. Bicutan: Philippine Council for Agriculture, Forestry and Natural Resources Research and Development.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFarm Primer. Philippine Council for Agriculture, Forestry and Natural Resources Research and Development.
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