Poungriedee Singhawannakul. (2005) Barriers to dental care utilization in a group of the elderly in Chon Buri province. Mahidol University,:ม.ป.ท.Poungriedee Singhawannakul. 2005. Barriers to dental care utilization in a group of the elderly in Chon Buri province. ม.ป.ท.:Mahidol University,;Poungriedee Singhawannakul. Barriers to dental care utilization in a group of the elderly in Chon Buri province. ม.ป.ท.:Mahidol University, 2005. Print.