M. Salman, H. ., M. . El-Sharkawy, and A. . N. El-Bahrawy. “Managing New Groundwater Irrigated Lands in Egypt Using GIS”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 69, no. 1, June 2020, pp. 45-58, https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/5934.