Shubber, Suha M, and Wesal A Al-Obaidi. 2015. “Dental Caries Among Kindergarten Children in Relation to Socioeconomic Status in Al-Najaf Governorate-Iraq”. Journal of Baghdad College of Dentistry 27 (3): 165-68. https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/824.