Ezeaku, P. I., Ifeyinwa, O., & Victor, E. (2020). LAND DEGRADATION IN THREE LOCATIONS AND SAMPLING PERIODS IN PHYSIOGRAPHIC UNITS UNDER ARABLE CROP PRODUCTION IN SUB- HUMID TROPICS OF NIGERIA. International Journal of Agricultural and Natural Sciences, 13(2), 62–82. Retrieved from https://ijans.org/index.php/ijans/article/view/497