Health research methodology : A guide for training in research methods / 

 - Manila:  World Health Organization, Regional Office for the Western Pacific,  1992 
 - v, 277 p.:  ill. ;  30cm 
<br/><br/> Acc. No. 10541 : 10633 
<br/><br/><label>ISBN: </label>9290611359 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public health<br/>Research