ASAS Kriptografi 
Mohd Aizaini Maarof...[et al.] 
 - Carmel, Ind.  New Riders Pub.  c1992. 
 - xvi, 728 p.  ill.  24 cm. 
<br/><br/>Include Index. 
<br/><br/><label>ISBN: </label>1562050281 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers)<br/>UNIX (Computer file)