R. E. H. N. El Deen, H. M. Alduaiji, G. M. Alajlan, and A. A. Aljabr, “Development of the Permanent Dentition and Validity of Demirjian and Goldstein Method for Dental Age Estimation in Sample of Saudi Arabian Children (Qassim Region)”, IJHS, vol. 10, no. 1, Feb. 2016.