Voramont Thongsopit. (1994) Functional ability of elderly Thai people in activities of daily living and ambulation. Mahidol University,:ม.ป.ท.Voramont Thongsopit. 1994. Functional ability of elderly Thai people in activities of daily living and ambulation. ม.ป.ท.:Mahidol University,;Voramont Thongsopit. Functional ability of elderly Thai people in activities of daily living and ambulation. ม.ป.ท.:Mahidol University, 1994. Print.