Krongkan Paiboonsin และ Chanin Yoopetch. (2011) The Investigation of customer behavior at wellness centers in Bangkok. Mahidol University:ม.ป.ท.Krongkan Paiboonsin และ Chanin Yoopetch. 2011. The Investigation of customer behavior at wellness centers in Bangkok. ม.ป.ท.:Mahidol University;Krongkan Paiboonsin และ Chanin Yoopetch. The Investigation of customer behavior at wellness centers in Bangkok. ม.ป.ท.:Mahidol University, 2011. Print.