Pimpa Kachondham. (2000) Disabilities and active life expectancy in the Thai elderly population. Mahidol University,:ม.ป.ท.Pimpa Kachondham. 2000. Disabilities and active life expectancy in the Thai elderly population. ม.ป.ท.:Mahidol University,;Pimpa Kachondham. Disabilities and active life expectancy in the Thai elderly population. ม.ป.ท.:Mahidol University, 2000. Print.