Fathy, Shadia A., Mohamed R. Mohamed, Mostafa M. Elhady, and Mohamed H. Al-habal. 2016. “Isolation and Biochemical Characterization of a Novel Antimicrobial Agent Produced by Streptomyces Violaceusniger Isolated from Yemeni Soil”. International Journal of Research in Medical Sciences 4 (1):22-32. https://doi.org/10.18203/2320-6012.ijrms20160004.