MOHAMED EL ALFY, and BRODER MERKEL. “Assessment of Human Impact on Quaternary Aquifers of Rafah Area, NE Sinai, Egypt”. International Journal of Economic and Environmental Geology, vol. 1, no. 2, July 2010, pp. 1-9, doi:10.46660/int.j.econ.environ.geol. v1i2.794.