Adesiji, A. R., O. D. Jimoh, P. A. Adeoye, A. J. Odofin, O. E. Asogwa, J. A. Mangey, and O. M. Odekunle. “Effect of Chemical Fertilizers on Groundwater Quality in an Unconfined Aquifer”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, Vol. 19, no. 1, Mar. 2023, pp. 113-20, https://azojete.com.ng/index.php/azojete/article/view/710.