“Production of Proteolytic Enzyme from Catfish Waste Using Bacillus Subtilis, Proteus Vulgaris, and Arthrobacter Aurescens”. Fountain Journal of Natural and Applied Sciences 6, no. 2 (December 29, 2017). Accessed April 20, 2026. https://new.fountainjournals.com/index.php/FUJNAS/article/view/152.