Akinmutimi, A.H., A.O. Aligwara, and S.F. Abasiekong. 2008. “Effects of Green Tea Powder Feed Supplement on Performance of Hens in the Late Stage of Laying”. International Journal of Poultry Science 7 (5): 491–496. https://doi.org/10.3923/ijps.2008.491.496.