Chukwu, Kevin Ejike. “EVALUATION OF THE PHYSICALLY AND EMPIRICALLY BASED MODELS OF SOIL EROSION IN SOUTH EASTERN NIGERIA”. Academic Journal of Current Research 6, no. 10 (October 30, 2019): 60–91. Accessed December 24, 2025. http://cirdjournals.com/index.php/ajcr/article/view/476.