DSalman, Faraed. “Oral Hygiene and Gingival Health Among School Children in Thamar Governorate in Republic of Yemen”. Mustansiria Dental Journal 1, no. 1 (June 15, 2004): 57–62. Accessed July 22, 2024. https://mdj.uomustansiriyah.edu.iq/index.php/mdj/article/view/1099.