MAHMUD, Aminu Dikko, Zeenat Aliyu, Bilqis Abdullahi Oluwatoyin, Aliyu Ahmed, Suleiman Yahaya A, and Aisha Mohammed Saleh. “Extraction and Characterization of Keratin Protein from Chicken Feathers Using Alkaline Hydrolysis Method: Effects of Sodium Sulphide Concentration and Shelf-Life Evaluation”. Malaysian Journal of Catalysis 7, no. 2 (December 28, 2023): 37–41. Accessed May 9, 2024. https://mjcat.utm.my/index.php/MalJCat/article/view/173.