Nongkran Ruengprapun. (1990) Zinc, copper and magnesium in health and diseases. Mahidol University,:ม.ป.ท.Nongkran Ruengprapun. 1990. Zinc, copper and magnesium in health and diseases. ม.ป.ท.:Mahidol University,;Nongkran Ruengprapun. Zinc, copper and magnesium in health and diseases. ม.ป.ท.:Mahidol University, 1990. Print.