“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 May 14, 2026. https://jlbsr.org/index.php/jlbsr/article/view/14.