Valacich, Joseph A. et al <br/><br/>
Essentials of systems analysis and design. 5th ed / 
Joseph A. et al. Valacich 
 - 445p.; ill.; 27cm 
<br/><br/><label>ISBN: </label>9780071838399 9789780071837 
<br/><br/><label>Subjects--Topical Terms: </label>