Bidar, M., R. Disfani, S. Gharagozloo, M. Akbari, and A. Rouhani. “The Effect of Calcium Hydroxide on the Short and Long-Term Sealing Properties of MTA Apical Barrier”. Iranian Endodontic Journal, vol. 6, no. 1, Apr. 2011, pp. 6-10, doi:10.22037/iej.v6i1.2023.