COMPARING GULLY LENGTH AND AVERAGE GULLY WIDTH RELATIONSHIPS ON TWO GEOLOGICAL SEDIMENTS OF VARYING VULNERABILITY TO EROSION IN THE NORTH CENTRAL NIGERIA. NIJOTECH [Internet]. 2018 Mar. 31 [cited 2026 Apr. 30];37(2):554-61. Available from: https://nijotech.com/index.php/nijotech/article/view/1692