Essa H, Zubaidi SL. hybrid model to improve reference evapotranspiration prediction: Integrating ANN and PSO. WJES [Internet]. 2023 Dec. 2 [cited 2026 Jun. 24];11(3):27-33. Available from: https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/450