RAINA, R.H., SAINI, M.S. and Khan, Z.H. (2014) “Morphology and food plants of subgenus Bombus sensu stricto (Hymenoptera: Apidae: Apinae) from Indian Himalaya”, The Indian Journal of Agricultural Sciences, 84(10), pp. 1217–24. doi:10.56093/ijas.v84i10.44191.