M.A. Ahmed, Y.A. Hassanean, and K.A. Assaf. 2015. “Fascinating Improvement in Mechanical Properties of Cement Mortar Using Multiwalled Carbon Nanotubes and Ferrite Nanoparticles”. Global Journals of Research in Engineering 15 (E1):23-29*. https://engineeringresearch.org/index.php/GJRE/article/view/1278.