S. M. Al-Anqudi, S. Al-Sudairy, A. Al-Hosni, and A. Al-Maniri, “Prevalence and Pattern of Third Molar Impaction : A retrospective study of radiographs in Oman”, Sultan Qaboos Univ Med J, vol. 14, no. 3, pp. 388–392, Aug. 2014.