Kwanrutai Somsak และ Orapin Kaewplung. (2012) The effects of number of natural teeth and number of posterior occluding pairs on the oral health-related quality of life in Thai elderly patients at Faculty of Dentistry, Chulalongkorn University. Chulalongkorn University:ม.ป.ท.Kwanrutai Somsak และ Orapin Kaewplung. 2012. The effects of number of natural teeth and number of posterior occluding pairs on the oral health-related quality of life in Thai elderly patients at Faculty of Dentistry, Chulalongkorn University. ม.ป.ท.:Chulalongkorn University;Kwanrutai Somsak และ Orapin Kaewplung. The effects of number of natural teeth and number of posterior occluding pairs on the oral health-related quality of life in Thai elderly patients at Faculty of Dentistry, Chulalongkorn University. ม.ป.ท.:Chulalongkorn University, 2012. Print.