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”, misan jas, vol. 22, no. 48, pp. 264-269, Dec. 2023.