“K-MEANS CLUSTERING ALGORITHM BASED CLASSIFICATION OF SOIL FERTILITY IN NORTH WEST NIGERIA”. FUDMA JOURNAL OF SCIENCES 4, no. 2 (November 3, 2020): 780–787. Accessed September 11, 2025. http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/363.