1. Acheampong PK (1986) Evaluation of potential evapotranspiration methods for Ghana. Geol J 12(4):409–415
2. Aghajanloo MB, Sabziparvar AA, HosseinzadehTalaee P (2013) Artificial neural network–genetic algorithm for estimation of crop evapotranspiration in a semiarid region of Iran. Neural Comput Appl 23:1387–1393
3. Allen RG, Pereira LS, Raes D, Smith M (1998) Crop evapotranspiration-guidelines for computing crop water requirements-FAO irrigation and drainage paper 56. FAO, Rome 300:6541
4. Allen RG, Smith M, Pereira LS (1994) An update for the definition of reference evapotranspiration. ICID Bull 43:1–34
5. Asare DK, Banini GK, Ayeh EO, Amenorpe G (2011) Estimation of potential evapotranspiration for coastal savannah environment by comparison of different methods. International Journal of Sustainable Agriculture 3(2):65–70