Ahmed, N. M. M. “Geology and Geochemistry of the Upper Proterozoic Granites of As – Said Intrusive Complex in Lawder – Mudia Districts Abyan Governorate”. University of Aden Journal of Natural and Applied Sciences, vol. 22, no. 1, Apr. 2018, pp. 115-2, doi:10.47372/uajnas.2018.n1.a09.