Ahmed, M.S., Sardar, M.M.A., Ahmad, M. and Kabir, K.H. 2017. Quantification of purity of some frequently used insecticides in vegetables insect pests. Asian Journal of Medical and Biological Research. 3, 2 (Aug. 2017), 267–275. DOI:https://doi.org/10.3329/ajmbr.v3i2.33579.