Esonu, B., Izukanne, R., & Inyang, O. (2005). Evaluation of Cellulolytic Enzyme Supplementation on Production Indices and Nutrient Utilization of Laying Hens Fed Soybean Hull Based Diets. International Journal of Poultry Science, 4(4), 213–216. https://doi.org/10.3923/ijps.2005.213.216