Khalequzzaman, M, and Jesmun Nahar. “Relative Toxicity of Some Insecticides and Azadirachtin Against Four Crop Infesting Aphid Species”. University Journal of Zoology, Rajshahi University 27 (January 28, 2009): 31–34. Accessed August 17, 2024. https://banglajol.info/index.php/UJZRU/article/view/1950.