Abobakr Abdourhaman Mohammed Salem, and Sawsan Ahmed Elhouri Ahmed. “ A Stady on the Nano Structural, Electrical Properties of Tin and Chromium Nitride Using X-Ray Diffraction ”. Engineering And Technology Journal, vol. 10, no. 2, Feb. 2025, pp. 3772-9, doi:10.47191/etj/v10i02.06.