Sungcaya, N., & Alcantara, L. (1980). Socio-economic, production and marketing study, Aparri, Cagayan. Special Studies Division, Ministry of Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSungcaya, N.G, और L.B Alcantara. Socio-economic, Production and Marketing Study, Aparri, Cagayan. Quezon City: Special Studies Division, Ministry of Agriculture, 1980.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSungcaya, N.G, और L.B Alcantara. Socio-economic, Production and Marketing Study, Aparri, Cagayan. Special Studies Division, Ministry of Agriculture, 1980.
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