Siwadee Suksawate และ Ketvalee Porkaew. (2009) Parental knowledge of the harmful effects of children's junk food consumption :. Thammasat University:ม.ป.ท.Siwadee Suksawate และ Ketvalee Porkaew. 2009. Parental knowledge of the harmful effects of children's junk food consumption :. ม.ป.ท.:Thammasat University;Siwadee Suksawate และ Ketvalee Porkaew. Parental knowledge of the harmful effects of children's junk food consumption :. ม.ป.ท.:Thammasat University, 2009. Print.