Ekong, U. S., and E. C. Ibezim. “Antibiotic Production, Activity Spectra and Plasmid Analysis of Streptomyces Species Isolated from Soil”. Nigerian Journal of Pharmaceutical and Applied Science Research 4, no. 3 (August 1, 2020): 33–41. Accessed November 23, 2024. http://mail.nijophasr.net/index.php/nijophasr/article/view/93.