DIBAL, J. M.; BASHIR, A. U.; HARUNA, M. M.; ABUBAKAR, N. A. Sensitivities of some Reference Evapotranspiration Models to the Key Climatic Variables in Northeastern Nigeria. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, v. 17, n. 1, p. 91-102, 1 Mar. 2021.