Rahman, A. S., and M. Akter. “Toxicity of Diazinon and Cypermethrin Against the American Cockroach, <i>Periplaneta americana</I> (L.)”. University Journal of Zoology, Rajshahi University, vol. 25, Aug. 2007, pp. 63-64, doi:10.3329/ujzru.v25i0.329.