Netnapit Rittisorn และ Niramol Ariyaarpakamol. (2019) Influence of human capital on retirement preparation : empirical evidence from Thailand. National Institute of Development Administration:ม.ป.ท.Netnapit Rittisorn และ Niramol Ariyaarpakamol. 2019. Influence of human capital on retirement preparation : empirical evidence from Thailand. ม.ป.ท.:National Institute of Development Administration;Netnapit Rittisorn และ Niramol Ariyaarpakamol. Influence of human capital on retirement preparation : empirical evidence from Thailand. ม.ป.ท.:National Institute of Development Administration, 2019. Print.