Obrien, James A. <br/><br/>
Introduction to Information Systems /   Textual Documents 
NULL. 
 - 12th ed /   . 
 - New Delhi :   Tata McGraw Hill Publishing Company Limited ,   2005. 
 - 581 ;   24*18. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Management Information System 
<br/><br/><label>Dewey Class. No.: </label>658.403 801 1  / OBR