Sh.Mahmood, Hanaa, Alaa Azeez Abas, Firas Kadhim Nsaif, Mohammed Hadi Mahdi, Nabras. Tahseen, and Abdul Hameed. 2016. “Study the Effect of Mixing the Zirconium Oxide ZrO2 Powder Ratios”. Journal of Kufa-Physics 8 (2). https://journal.uokufa.edu.iq/index.php/jkp/article/view/7358.