Shrestha, Bharat Babu, et al. “Beetle on the Battle: Defoliation of Parthenium Hysterophorus by Zygogramma Bicolorata in Kathmandu Valley, Nepal”. Botanica Orientalis: Journal of Plant Science, vol. 8, Mar. 2012, pp. 100-4, doi:10.3126/botor.v8i0.5559.