Chaturvedi Indira. “A Survey of Insecticide Resistance in Helicoverpa Armigera in Central and South Indian Cotton Ecosystems”. International Journal of Research in BioSciences (IJRBS), vol. 2, no. 1, Dec. 2012, pp. 37-43, https://ijrbs.in/index.php/ijrbs/article/view/63.