Sakon Supakul. (1999) Forecast of demand for institutional care of elderly in the years 1997-2017 by system dynamo modeling. Mahidol University,:ม.ป.ท.Sakon Supakul. 1999. Forecast of demand for institutional care of elderly in the years 1997-2017 by system dynamo modeling. ม.ป.ท.:Mahidol University,;Sakon Supakul. Forecast of demand for institutional care of elderly in the years 1997-2017 by system dynamo modeling. ม.ป.ท.:Mahidol University, 1999. Print.