Monvalee Chumnanya และ Usaneya Perngparn. (2012) Health problem from working as Thai traditional massage therapists. Chulalongkorn University:ม.ป.ท.Monvalee Chumnanya และ Usaneya Perngparn. 2012. Health problem from working as Thai traditional massage therapists. ม.ป.ท.:Chulalongkorn University;Monvalee Chumnanya และ Usaneya Perngparn. Health problem from working as Thai traditional massage therapists. ม.ป.ท.:Chulalongkorn University, 2012. Print.