Vilaiwan Sudayuworn. (1992) Soft tissue profile and its changes in orthodontic treatment in Thai bimaxillary protrusion. Mahidol University,:ม.ป.ท.Vilaiwan Sudayuworn. 1992. Soft tissue profile and its changes in orthodontic treatment in Thai bimaxillary protrusion. ม.ป.ท.:Mahidol University,;Vilaiwan Sudayuworn. Soft tissue profile and its changes in orthodontic treatment in Thai bimaxillary protrusion. ม.ป.ท.:Mahidol University, 1992. Print.