Lafta, Huda M, and Adel F Ibraheem. “Evaluation of Fracture Strength of Endodontically Treated Teeth Restored by Milled Zirconia Post and Core With Different Post and Core Systems (An in Vitro Comparative Study)”. Journal of Baghdad College of Dentistry, vol. 25, no. 4, Dec. 2013, pp. 12-16, https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/162.