Boonlert Butchan. 2000. Factors of mothers' health behavior related to severity of acute respiratory infection in children under 5 yearsBoonlert Butchan. Faculty of Graduate Studies, Mahidol University;
Boonlert Butchan. (2000) Factors of mothers' health behavior related to severity of acute respiratory infection in children under 5 yearsBoonlert Butchan . Mahidol University/Bangkok.
Boonlert Butchan. Factors of mothers' health behavior related to severity of acute respiratory infection in children under 5 yearsBoonlert Butchan. . Bangkok:Mahidol University, 2000.
Boonlert Butchan. (2000) Factors of mothers' health behavior related to severity of acute respiratory infection in children under 5 yearsBoonlert Butchan . Mahidol University/Bangkok.