Suleiman, U. B., A. I. Abdulhamid, and K. Salisu. “TREND ANALYSIS OF MONTHLY AND ANNUAL RAINFALL PROFILE IN KATSINA AND ITS ENVIRONS”. FUDMA JOURNAL OF SCIENCES, Vol. 4, no. 1, Apr. 2020, pp. 519 -27, https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/75.