Alamry ع., and Qatan ع. “Applications of GIS for Morphometric and Hydrologic Analysis of Drainage Basins of Hidibu Plan – Socotra Island”. University of Aden Journal of Natural and Applied Sciences, vol. 22, no. 2, Oct. 2018, pp. 337-49, doi:10.47372/uajnas.2018.n2.a09.