P.SELVAKUMAR, et al. “Antimicrobial Activity Of Extracellularly Synthesized Silver Nanoparticles From Marine Derived Streptomyces Rocheiv”. International Journal of Pharma and Bio Sciences, vol. 3, no. 3, Sept. 2012, pp. 188-97, https://ijpbs.net/index.php/journal/article/view/1472.