Tawfik, M. N., S. F. Hassan, O. R. Sallam, and N. Z. Kinawy. “Tissue Annual Effective Doses Estimation from Natural Occurring Radioactive Materials at Ramlet Homayier Area - South Western Sinai, Egypt”. JOURNAL OF ADVANCES IN PHYSICS, vol. 15, Feb. 2019, pp. 6116-30, doi:10.24297/jap.v15i0.8080.