“DETERMINATION OF LEVELS OF ORGANOPHOSPHORUS PESTICIDE RESIDUES IN KALES, TOMATOES AND FRENCH BEANS FROM MERU COUNTY, KENYA BY GC-MS”. African Journal of Emerging Issues 1, no. 10 (October 23, 2019): 20–29. Accessed September 10, 2025. https://ajoeijournal.org/sys/index.php/ajoei/article/view/59.