S. Ahmed, F. Solaiman, M. R. Islam, S. M. Akhter, M. Z. I. Nizami, and M. A. Khatun, “Attitude on Oral Hygiene among the School going Children in Selected Schools at Dhaka city”, City Dent Coll J, vol. 10, no. 2, pp. 41–46, Sep. 2013.