Wathinee Boonchalaksi. (2000) Family size and elderly care. Mahidol University,:ม.ป.ท.Wathinee Boonchalaksi. 2000. Family size and elderly care. ม.ป.ท.:Mahidol University,;Wathinee Boonchalaksi. Family size and elderly care. ม.ป.ท.:Mahidol University, 2000. Print.