Vinai Chamnanpan. (1991) Knowledge, perception and health care provision of health personnel in health centers in Kamphangphet province, Thailand. Mahidol University,:ม.ป.ท.Vinai Chamnanpan. 1991. Knowledge, perception and health care provision of health personnel in health centers in Kamphangphet province, Thailand. ม.ป.ท.:Mahidol University,;Vinai Chamnanpan. Knowledge, perception and health care provision of health personnel in health centers in Kamphangphet province, Thailand. ม.ป.ท.:Mahidol University, 1991. Print.