Preecha Boonchoong. (1998) Design and synthesis of coumarin amides as antiradical agents. Mahidol University,:ม.ป.ท.Preecha Boonchoong. 1998. Design and synthesis of coumarin amides as antiradical agents. ม.ป.ท.:Mahidol University,;Preecha Boonchoong. Design and synthesis of coumarin amides as antiradical agents. ม.ป.ท.:Mahidol University, 1998. Print.