Soraya Unruenngam. (2005) Opinions of workplace administrators in Bangkok concerning employment of persons with disabilities. Mahidol University,:ม.ป.ท.Soraya Unruenngam. 2005. Opinions of workplace administrators in Bangkok concerning employment of persons with disabilities. ม.ป.ท.:Mahidol University,;Soraya Unruenngam. Opinions of workplace administrators in Bangkok concerning employment of persons with disabilities. ม.ป.ท.:Mahidol University, 2005. Print.