Kafle, D., Mishra, R. K., Mahto, R. K., Luintel, S., Shrestha, S. and Sangroula, S. (2019) “Comparison of Orthodontic Treatment Duration Among Extraction Versus Non Extraction Therapies”, Orthodontic Journal of Nepal, 9(2), pp. 57–60. doi: 10.3126/ojn.v9i2.28416.