Boonlert Butchan. (2000) Factors of mothers' health behavior related to severity of acute respiratory infection in children under 5 years. Mahidol University,:ม.ป.ท.Boonlert Butchan. 2000. Factors of mothers' health behavior related to severity of acute respiratory infection in children under 5 years. ม.ป.ท.:Mahidol University,;Boonlert Butchan. Factors of mothers' health behavior related to severity of acute respiratory infection in children under 5 years. ม.ป.ท.:Mahidol University, 2000. Print.