“Dental Caries Prevalence and Severity in Relation to Residential Factor Among (6-9) Years School Age Children in Two Different Area in Baghdad City”. 2021. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 28 (2): 31-45. https://doi.org/10.55562/jrucs.v28i2.387.