Okorie, E., E. Obalum, S. and Singh, L. (2017) “The potential of fermented cottonseed oil-mill effluent as inexpensive biofertilizers and its agronomic evaluation on medium-textured tropical soil”, International Journal of Recycling of Organic Waste in Agriculture, 6(2). doi:10.1007/s40093-017-0158-6.