Islam,M.Nurul  x <br/><br/>
An introduction to research methods/ 
by Nurul Islam 
 - 5th ed. 
 - Dhaka  Mollic  and brothers  2023 
 - 674 P.  22 cm. 
<br/><br/>Includes 
<br/><br/><label>ISBN: </label>9843000014223 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research methods Research 
<br/><br/><label>Dewey Class. No.: </label>001.42/I82i