Aem-on Phitthayayon. (1990) The construction and evaluation of training curriculum on environmental information resource services for academic librarians. Mahidol University,:ม.ป.ท.Aem-on Phitthayayon. 1990. The construction and evaluation of training curriculum on environmental information resource services for academic librarians. ม.ป.ท.:Mahidol University,;Aem-on Phitthayayon. The construction and evaluation of training curriculum on environmental information resource services for academic librarians. ม.ป.ท.:Mahidol University, 1990. Print.