Rao, A. P., B. E. Agbo, N. S. Udoekong, and H. A. Etuk. 2019. “Soil Bacteria As a Natural Source of Antifungal Agents Against Phytopathogenic Fungus: Aspergillus Niger”. Recent Advances in Biological Research Vol. 2, July, 1-10. https://stm1.bookpi.org/index.php/rabr-v2/article/view/183.