M. Widaa’, Einas, & Mubarak D. Abdalla.
" The Dependence of the Out Put Power and Absorptivity of Waveguides and Nano Solar Cells on the low Frequency and Dimensions." <em>Gezira Journal of Engineering and Applied Sciences</em> [Online], 4.2 (2009): 86 - 103. Web.  3 Jun. 2026