Haitham T. Al Qaysi 1, Thekra I. Hamad 2, Thair L. Al Zubaidy 3. “Analysis of the Surface Hardness of Niobium Carbide Coatings Deposited on Commercially Pure Titanium and Ti-6Al-7Nb Alloy Implant Materials Using the Glow Discharge Plasma Technique”. (Humanities, Social and Applied Sciences) Misan Journal of Academic Studies , Vol. 22, no. 48, Dec. 2023, pp. 264-9, http://misan-jas.com/index.php/ojs/article/view/547.