O.K, I., V.U., O., A.I., C., A.O., U., C.F., E., & C.E, O. (2016). Evaluation of geotechnical properties of gully erosion materials in ORLU and its environs, IMO state, Nigeria. International Journal of Advanced Geosciences, 4(1), 8-14. https://doi.org/10.14419/ijag.v4i1.5991