Suvatna Chulavatnatol. (1987) Disinfectants and their roles in prevention of nosocomial infection. Mahidol University,:ม.ป.ท.Suvatna Chulavatnatol. 1987. Disinfectants and their roles in prevention of nosocomial infection. ม.ป.ท.:Mahidol University,;Suvatna Chulavatnatol. Disinfectants and their roles in prevention of nosocomial infection. ม.ป.ท.:Mahidol University, 1987. Print.