Allen R.G.; L.S. Pereira; D. Raes and M. Smith (1998). Crop evapo-transpiration-guidelines for computing crop water requirements. FAO irrigation and drainage paper 56. Report of food and agriculture organization of the United Nations, Rome.
ASHRAE (2005). Handbook of Fundamentals "American Society of Heating, Refrigerating and Air Conditioning Engineers". New York, USA.
Duffie, J. A. and W. A. Beckman, (1991). Solar Engineering of Thermal Process Wiley – Interscine. New York, USA: 3-44.
Erbs, D. G.; S. A. Klein and W. A. Beckman (1983). Estimation of degree-days and ambient temperature bin data from monthly average temperature. ASHRAE J. 25(6): 60-5.
ESRA (Egyptian solar radiation atlas) (1991).New and Renewable Energy Authority, Cairo, Egypt.
Liu, B. Y. H. and J. R. C. Jordan (1963). The long-tern performance average performance of flat plat solar energy collectors. Solar Energy J., 7(-): 53.
Moharm, A. E. A. (1993). Utilization of solar energy for irrigation and its evaluation. (MSc) Thesis in Agicltural Eng. Dep, Fac. of Agr., Ain Shams U., Egypt.
Sayigh, A. A. M. (1987). The ISO-radiation map for the Arab region. Solar & Wind Tec. J., 4(2): 163-177.
Shaltout, M. A. and A. H. Hassen (1990). Solar energy distribution over Egypt using cloudiness from Metosat photos. Solar Energy J., 45(6): 345-351.
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