Penprapa Siviroj. (2000) Development of organizational management model of elderly club for self-health care. Mahidol University,:ม.ป.ท.Penprapa Siviroj. 2000. Development of organizational management model of elderly club for self-health care. ม.ป.ท.:Mahidol University,;Penprapa Siviroj. Development of organizational management model of elderly club for self-health care. ม.ป.ท.:Mahidol University, 2000. Print.