Penprapa Siviroj. 2000. Development of organizational management model of elderly club for self-health care. Faculty of Graduate Studies, Mahidol University;
Penprapa Siviroj. (2000) Development of organizational management model of elderly club for self-health care . Mahidol University/Bangkok.
Penprapa Siviroj. Development of organizational management model of elderly club for self-health care. . Bangkok:Mahidol University, 2000.
Penprapa Siviroj. (2000) Development of organizational management model of elderly club for self-health care . Mahidol University/Bangkok.