Munita Chootiraka และ Suwaree Namwong. (2017) Risk perception prevention for international retirement migration. National Institute of Development Administration:ม.ป.ท.Munita Chootiraka และ Suwaree Namwong. 2017. Risk perception prevention for international retirement migration. ม.ป.ท.:National Institute of Development Administration;Munita Chootiraka และ Suwaree Namwong. Risk perception prevention for international retirement migration. ม.ป.ท.:National Institute of Development Administration, 2017. Print.