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Alvin, Chai Lian Kuet and Lau, Seng (2008) Comparative study on cleanup procedures for the determination of organophosphorus pesticides in vegetables. Malaysian Journal of Analytical Sciences, 12 (1). pp. 105-110. ISSN 1394-2506
Alvin, Chai Lian Kuet and Lau, Seng (2003) Determination of Organophosphorus Pesticides in Vegetables by Solid-Phase Extraction Cleanup and Gas Chromatography. Pertanika Journal of Science & Technology, 11 (1). pp. 93-105. ISSN 0128-7680