Mishu, M. P., R. M. Hubbard, S. Haque, M. A. Sayeed, S. T. Imam, P. A. Khanam, T. Begum, and M. H. Khan. “Gingivitis in Primary School Children of Bangladesh”. Ibrahim Medical College Journal, vol. 3, no. 2, Jan. 2010, pp. 71-74, doi:10.3329/imcj.v3i2.4221.