Shalal, M., مخلف, Jasim, K., خضر, I.Al-Rijabo, W. and وليد 2025. Study of Reference Evapotranspiration in Ninava Governorate Using Different Mathematical Models. Rafidain Journal of Science. 19, 6 (Jun. 2025), 154–173. DOI:https://doi.org/10.33899/rjs.2008.41432.