editors Madonna C. Casimero, Peter A.C. Ooi

Department of agriculture-bureau of agricultural research c2010

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Khoo Khay Chong, Peter A.C. Ooi, Ho Cheng Tuck

Tropical Press 1991

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Peter A.C. Ooi

Tropical Press 1988

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by Peter A.C. Ooi, Lim, G.S., Koh, A.K

[Ministry of Agriculture, Publication Unit] 1979 Bulletin / Ministry of Agriculture and Co-operatives, Malaysia no. 149

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