Ekenyem, B.U., et al. “Performance of Finisher Broiler Chicks Fed Varying Replacement Levels of Chromolaena Odorata Leaf for Soyabean Meal”. Pakistan Journal of Nutrition, vol. 9, no. 6, May 2010, pp. 558–561, https://doi.org/10.3923/pjn.2010.558.561.