Sardar.M.R.K Al-Jumur. 2020. “A Comparison of Empirical Equations of Estimating Potential Evapotranspiration (PET) from Climatological Data in Erbil City”. Zanco Journal of Pure and Applied Sciences 32 (2):129-39. https://doi.org/10.21271/ZJPAS.32.2.13.