M. Hossain, M. Islam, M. Salam, M. Hossain, and M. Salma, “Management of chickpea pod borer, <i>helicoverpa armigera</i> (Hubner) using neem seed extract and lambda-cyhalothrin in high barind tract”, J bio-sci., vol. 18, pp. 44–48, Oct. 2011.