Rati Chooraks. (1998) Physicochemical characteristics and stability of freeze-dried cephalexin sodium powder. Mahidol University,:ม.ป.ท.Rati Chooraks. 1998. Physicochemical characteristics and stability of freeze-dried cephalexin sodium powder. ม.ป.ท.:Mahidol University,;Rati Chooraks. Physicochemical characteristics and stability of freeze-dried cephalexin sodium powder. ม.ป.ท.:Mahidol University, 1998. Print.