Mona Ali. A, Rawia Abd Elgani Elobaid, Abdalsakhi S M.H, Ali Soliman, Nafisa Badar Eldeen і Mubarak Dirar 2021. Effect of Different Concentration of cobalt Oxide (CoO) and Titanium Dioxide (TiO2) on Diameter of Carbon nanotubes. International Scientific Survey Journal. 4, 1 (Трав 2021), 1–6.