Padma B., J., S. K., A. P., and A. Shiny R. “Isolation, Characterization and Evaluation of Antioxidant Activities of Secondary Metabolites Producing Actinomycetes of Terrestrial Origin”. International Journal of Research in Medical Sciences, vol. 6, no. 3, Feb. 2018, pp. 1017-28, doi:10.18203/2320-6012.ijrms20180643.