1. Abughlelesha SM, Lateh HB (2013) A review and analysis of the impact of population growth on water resources in Libya. World Appl Sci J 23(7):965–971
2. Ahmadi L, Merkley G (2008) Planning and management modeling for treated wastewater usage. USCID Conference on Urbanization of Irrigated Land and Water Transfers, Scottsdale, Arizona
3. Allen RG, Pereira LS, Raes D, Smith M (1998) Crop evapotranspiration: guidelines for computing crop requirements. FAO Irrigation and Drainage Paper, No. 56, Rome, Italy
4. Anderson MT, Woosley LH Jr (2005) Water availability for the Western United States—key scientific challenges, US Geological Survey, Circular 1261, Reston, Virginia, p 85
5. Bernstein S (2002) Freshwater and human population: a global perspective. Yale F&ES Bull 107:149–157