Boonthiwa Choochua. (2000) The effects of supportive group therapy on stress and coping behavior of mothers of children with moderate mental retardation. Mahidol University,:ม.ป.ท.Boonthiwa Choochua. 2000. The effects of supportive group therapy on stress and coping behavior of mothers of children with moderate mental retardation. ม.ป.ท.:Mahidol University,;Boonthiwa Choochua. The effects of supportive group therapy on stress and coping behavior of mothers of children with moderate mental retardation. ม.ป.ท.:Mahidol University, 2000. Print.