Samad, M., Husain, M., Begum, M. and Hossain, M. (2009) “Effects of sowing dates on the incidence of mustard sawflies, mustard aphids and its predator, the lady bird beetles”, Bangladesh Journal of Zoology, 35(2), pp. 319–324. Available at: https://banglajol.info/index.php/BJZ/article/view/2452 (Accessed: 22 December 2024).