فهد بن ناصر إبراهيم البركه

Barakah, F. N., E .M. Ramadan and A. M. Heggo (2000). Evaluation of microbial and chemical pollution in deep-well water at EL-Kharj, Riyadh region, Saudi Arabia. Annals Agric. Sci. Ain Shams Univ., Cairo, 45:163-188.