Amrutha, P., B. S. Priya, S. Lakshmanasenthil, A. A. Jenifer, L. S. Pillai, G. Suja, and T. Vinothkumar. “Pyrethrin from Tanacetum Cineriifoliun As Repellent Against Mosquitoes”. International Current Pharmaceutical Journal, vol. 2, no. 10, Sept. 2013, pp. 170-6, doi:10.3329/icpj.v2i10.16411.