Arshad Ali, Zia Ul Haq, and Khurram Sheraz. “EVALUATION OF DIFFERENT MODELS TO ESTIMATE REFERENCE EVAPOTRANSPIRATION AT DIFFERENT CLIMATIC ZONES OF PAKISTAN”. Spectrum of Engineering Sciences, vol. 3, no. 7, July 2025, pp. 634-47, https://sesjournal.com/index.php/1/article/view/629.