Charupim Kiatiprajuk. (1992) The levels of guardians" awareness of dental health and dental caries in preschool children. Mahidol University,:ม.ป.ท.Charupim Kiatiprajuk. 1992. The levels of guardians" awareness of dental health and dental caries in preschool children. ม.ป.ท.:Mahidol University,;Charupim Kiatiprajuk. The levels of guardians" awareness of dental health and dental caries in preschool children. ม.ป.ท.:Mahidol University, 1992. Print.