General introduction to hearing impairment  : study guide M. Ed. advanced diploma course code 680, units 1-9 
AIOU 
 - Islamabad:  AIOU,  1991. 
 - 146p. 
<br/><br/> course code 680 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Deafness
<br/><br/><label>Dewey Class. No.: </label>371.912  / ALG