Gopikrishnan, Venugopal, et al. “Antimicrobial, Antitubercular and Antiproliferative Activities of Quercetin Isolated from the Marine Streptomyces Fradiae”. Bangladesh Journal of Pharmacology, vol. 12, no. 3, Sept. 2017, pp. 333-4, doi:10.3329/bjp.v12i3.33208.