Odu, Ngozi, Gift Uzah, and Nedie Akani. “Optimization of Citric Acid Production by Aspergillus Niger and Candida Tropicalis for Solid State Fermentation Using Banana Peel Substrate”. Journal of Life and Bio Sciences Research 1, no. 02 (September 12, 2020): 51 - 60. Accessed March 29, 2024. https://jlbsr.org/index.php/jlbsr/article/view/14.