Onu Okpara, Ihuoma Queen, Solomon Oranusi, and Hilary Okagbue. 2019. “Production of Probiotic-Fortified Composite Poultry Feed from Food and Agricultural Waste Material”. Journal of Advanced Veterinary and Animal Research 6 (4):544-48. https://www.banglajol.info/index.php/JAVAR/article/view/44145.