Tropical Agricultural Research | Postgraduate Institute of Agriculture, University of Peradeniya. Cambridge University Press.
Tohutoru Kātū Chicago (17th ed.)Tropical Agricultural Research | Postgraduate Institute of Agriculture, University of Peradeniya. Cambridge University Press.
Tohutoro MLA (9th ed.)Tropical Agricultural Research | Postgraduate Institute of Agriculture, University of Peradeniya. Cambridge University Press.
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