1. Abdel-Shafy, H.I., S. Anwer, S. Hassan and T. Yahia (2003) "Risk assessment of sewage reuse on the sandy soil of Abu-Rawash Desert, Egypt" J. Environmental Protection Engineering, 01 (2003).
2. Abdel-Shafy, H.I. and Aly, R.O. "Water issue in Egypt: resources, pollution and protection endeavors" Central European J. of Occupational & Environmental Medicine, 8(1): 1–21 (2002).
3. Abdel-Shafy, H.I. and U. Troeger - Report 1998, Bilateral Egypt-Germany Scientific & Technological Cooperation, National Research Center and International Research Center, Juelich GMBH, 86 pages (1998).
4. Abdel-Sabour, M.F., Abdel-Shafy, H.I., and T.M. Mosalem "Heavy Metals and Plant growth yield as effected by sewage sludge and water hyacinth compost applied to sandy soil" J. Environmental Protection Engineering, Vol. 27(2):43–53 (2001).
5. American Public Health Association (APHA), Standard Method For the Examination of Water & Wastewater, p. 385, APHA, AWWA, WPCF, Washington, D.C. (1995).