Kipkemoi, E., W. A. Andayi, E. C. Njagi, and B. Ptoton. “Analysis of Pesticide Residues in Tomatoes and French Beans from Murang’a and Kiambu Counties, Kenya”. European Journal of Nutrition & Food Safety, Vol. 12, no. 11, Dec. 2020, pp. 121-32, doi:10.9734/ejnfs/2020/v12i1130328.