Suchada Kaewchana และผู้แต่งคนอื่นๆ. (2009) Effect of intensive education on frequency and quality of hand washing among households with influenza positive child in urban, Thailand. Chulalongkorn University:ม.ป.ท.Suchada Kaewchana และผู้แต่งคนอื่นๆ. 2009. Effect of intensive education on frequency and quality of hand washing among households with influenza positive child in urban, Thailand. ม.ป.ท.:Chulalongkorn University;Suchada Kaewchana และผู้แต่งคนอื่นๆ. Effect of intensive education on frequency and quality of hand washing among households with influenza positive child in urban, Thailand. ม.ป.ท.:Chulalongkorn University, 2009. Print.