Jamsa, Kris <br/><br/>
DOS :  the complete reference / 
Kris Jamsa. 
 - 4th ed 
 - Manila :  Global Pub,  c1993. 
 - xxii, 1121 p. : ill. 
<br/><br/><label>ISBN: </label>971-656-046-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers)