Dibal, J. M., A. U. Bashir, M. M. Haruna, and N. A. Abubakar. 2021. “Sensitivities of Some Reference Evapotranspiration Models to the Key Climatic Variables in Northeastern Nigeria”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 17 (1), 91-102. https://azojete.com.ng/index.php/azojete/article/view/407.