Não informado. (2008). Agricultural Bulletin of the Straits and Federated Malay States. Straits Times Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Agricultural Bulletin of the Straits and Federated Malay States. Singapore: Straits Times Press, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Agricultural Bulletin of the Straits and Federated Malay States. Straits Times Press, 2008.
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