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Leong M.S.W., . and Ng S.K., . and Thong K.C., . and Ooi S.H., . and Leng K.Y., . (1996) Investigations on the use of a Single Digest-Solution SDS in determining essential plant nutrients in plantation tree crops in Malaysia. [Proceedings Paper]
Ooi S.H., . (1990) Evaluation on the efficacy of avermectin B1 against Plutella xylostella in cabbage at Cameron Highlands. [Proceedings Paper]
Ooi S.H., . and Woo Y.C., . and Leng K.Y., . Yield maximization and conservation in tree crop agriculture with special reference to oil palm and cocoa. pp. 501-519.
Lim J.T., . and Ooi S.H., . A preliminary investigation on certain large-scale effects of typhoon over Equatorial Southeast Asia Malaysian-Indonesia region. -.
