1. UNDP. Human development report. Report of United Nations Development Program; 2006. ; (04/01/2013).
2. GEF, GEF Country Portfolio Evaluation: Egypt (1991–2008). Report of global environment facility evaluation office No. 51. Editing and design: Nita congress, Global Environment Facility Evaluation Office, 1818 H Street, NW, Washington, DC 20433 USA; 2009. 163 p. Internet: ; DC 20433.
3. Organic carbon distribution and preservation in sediments of Lake Burullus, S.E. Mediterranean, Egypt;El-Sammak;Fresenius Environ Bull,1995
4. Hydrological characteristics of three North African coastal lagoons: insights from the MELMARINA project;Thompson;J Hydrobiol,2009
5. Abdel-Gawad ST, El-Sayed A. An approach to identify the pollution field in Lake Manzala. In: Conf on coping with water scarcity, Hurghada, Egypt, 28 August; 1998. p. 1–10.