Al.Jabouri, Mohammed R, and Zainab Zabar Abdul-Ameer. “X-Ray Diffraction and Biocompatibility of Glass Ionomer Cement Reinforced by Different Ratios of Synthetic Hydroxyapatite”. Journal of Baghdad College of Dentistry, vol. 25, no. 3, Mar. 2013, pp. 62-68, https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/260.