Mayuree Leethong-in และผู้แต่งคนอื่นๆ. (2009) A causal model of physical activity in healthy older Thai people. Chulalongkorn University:ม.ป.ท.Mayuree Leethong-in และผู้แต่งคนอื่นๆ. 2009. A causal model of physical activity in healthy older Thai people. ม.ป.ท.:Chulalongkorn University;Mayuree Leethong-in และผู้แต่งคนอื่นๆ. A causal model of physical activity in healthy older Thai people. ม.ป.ท.:Chulalongkorn University, 2009. Print.