Asprer และ Meredith Anne M. (1988) Dental needs, demands, and utilization of dental services : a case study of Bangkok Metropolitan Administration's Health Center number 30. Mahidol University,:ม.ป.ท.Asprer และ Meredith Anne M. 1988. Dental needs, demands, and utilization of dental services : a case study of Bangkok Metropolitan Administration's Health Center number 30. ม.ป.ท.:Mahidol University,;Asprer และ Meredith Anne M. Dental needs, demands, and utilization of dental services : a case study of Bangkok Metropolitan Administration's Health Center number 30. ม.ป.ท.:Mahidol University, 1988. Print.