Muhammad Saif ur Rehman  <br/><br/>
Research manual understanding the research in social sciences  
Muhammad Saif ur Rehman  
 - Islamabad :  National Defense University .,  2014 
 - 177 p' 
<br/><br/> 1995). 
<br/><br/>
<br/><br/><label>Dewey Class. No.: </label>001.4  / SAI