Amin, MR, and VJ Kwon. “Time And Age Specific Mating Success Of Bumblebee (<i>Bombus Terrestris< I> L.) Reared At Different Photoperiodic Regimes”. Bangladesh Journal of Agricultural Research, vol. 36, no. 1, Dec. 2011, pp. 13-20, doi:10.3329/bjar.v36i1.9225.