Vilaiwan Sudayuworn. 1992. Soft tissue profile and its changes in orthodontic treatment in Thai bimaxillary protrusion. Bangkok:Mahidol University;
Vilaiwan Sudayuworn. (1992) Soft tissue profile and its changes in orthodontic treatment in Thai bimaxillary protrusion (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Vilaiwan Sudayuworn. Soft tissue profile and its changes in orthodontic treatment in Thai bimaxillary protrusion. Bangkok:Mahidol University, 1992.
Vilaiwan Sudayuworn. (1992) Soft tissue profile and its changes in orthodontic treatment in Thai bimaxillary protrusion (รายงานผลงานวิจัย). Mahidol University:Bangkok.