Abdulkadir, M., & Nuhu, A. (2020). FARMERS’ PERCEPTION OF FADAMA SOIL FERTILITY ALONG CHALLAWA RIVER, KANO STATE, NIGERIA. FUDMA JOURNAL OF SCIENCES, 4(1), 756-763. http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/114