Tea Research Institute of Sri Lanka & Tea Research Institute of Ceylon. The Tea quarterly.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTea Research Institute of Sri Lanka और Tea Research Institute of Ceylon. The Tea Quarterly. St. Coombs, Talawakele, Tea Research Institute of Sri Lanka.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTea Research Institute of Sri Lanka और Tea Research Institute of Ceylon. The Tea Quarterly.
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