Ahsan และ M.Gias Uddin. (1993) Study on the factors affecting ORS utilization of mothers in diarrhoeal diseases of children under five years of age in Nakhon Pathom province. Mahidol University,:ม.ป.ท.Ahsan และ M.Gias Uddin. 1993. Study on the factors affecting ORS utilization of mothers in diarrhoeal diseases of children under five years of age in Nakhon Pathom province. ม.ป.ท.:Mahidol University,;Ahsan และ M.Gias Uddin. Study on the factors affecting ORS utilization of mothers in diarrhoeal diseases of children under five years of age in Nakhon Pathom province. ม.ป.ท.:Mahidol University, 1993. Print.