Leigh,Andrew. <br/><br/>
Understanding Management Software. 

 -  Mac Millan Press.  1985 
<br/><br/> 286 P. 
<br/><br/>PEMBEKAL:KOP.KEDAI BUKU UM/NO.LO. 
<br/><br/><label>Dewey Class. No.: </label>658.05425 LEI