Anlaya Smuseneeto และ Kusol Soonthorndhada. (2011) Economic security among the Thai elderly in 2002 and 2007 : changes and determinants. Mahidol University:ม.ป.ท.Anlaya Smuseneeto และ Kusol Soonthorndhada. 2011. Economic security among the Thai elderly in 2002 and 2007 : changes and determinants. ม.ป.ท.:Mahidol University;Anlaya Smuseneeto และ Kusol Soonthorndhada. Economic security among the Thai elderly in 2002 and 2007 : changes and determinants. ม.ป.ท.:Mahidol University, 2011. Print.