Kanchana Rachrujitong และ Panya Kaimook. (2011) Analysis of related factors which effect the decision of choosing a health screening package. Mahidol University:ม.ป.ท.Kanchana Rachrujitong และ Panya Kaimook. 2011. Analysis of related factors which effect the decision of choosing a health screening package. ม.ป.ท.:Mahidol University;Kanchana Rachrujitong และ Panya Kaimook. Analysis of related factors which effect the decision of choosing a health screening package. ม.ป.ท.:Mahidol University, 2011. Print.