Sundaresan, P. K., and K. P. Kesavan. “In Vitro Evaluation of Antibacterial Activity in Ethanolic Extract of Whole Plant Sphaeranthus Indicus Linn”. International Journal of Basic & Clinical Pharmacology, vol. 9, no. 11, Oct. 2020, pp. 1730-4, doi:10.18203/2319-2003.ijbcp20204409.