Akbar, T., Hasan, H., Awal, M. A., Ghosh, M. K., Haque, M. J., & Sultana, N. (2017). A Study on Biofilm Formation in Relation to Oral Hygiene Status Related to Tooth Brushing Practice. Update Dental College Journal, 7(1), 21–25. https://doi.org/10.3329/updcj.v7i1.33305