Stamper, David A. <br/><br/>
Business data communications / 
David A. Stamper. 
 - 4th ed. 
 - Menlo Park, Calif. :  Benjamin/Cummings Pub. Co.,  c1986. 
 - xx, 456 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0805391045  TZS 25,000/= 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.<br/>Business enterprises
<br/><br/><label>Dewey Class. No.: </label>004.6 STA