Ishola, K., Olawuyi, O.A., Bello, A.A., Etim, R.K., Yohanna, P. and Sani, J.E. 2019. Review of Agricultural Waste Utilization as Improvement Additives for Residual Tropical Soils. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT. 15, 3 (Sep. 2019), 733-749.