Natenapist La-iad และ Kasemsarn Chotchakornpant. (2016) The livelihood strategies and policy implications for good living standard of population ageing in Thailand. National Institute of Development Administration:ม.ป.ท.Natenapist La-iad และ Kasemsarn Chotchakornpant. 2016. The livelihood strategies and policy implications for good living standard of population ageing in Thailand. ม.ป.ท.:National Institute of Development Administration;Natenapist La-iad และ Kasemsarn Chotchakornpant. The livelihood strategies and policy implications for good living standard of population ageing in Thailand. ม.ป.ท.:National Institute of Development Administration, 2016. Print.