The Official CompTIA A+:  A Comprehensive Approach Instructor Guide (Exams 220-902 and 220-902)/ 
Taylor, Pamela J.; Sandler, Gail 
 - 2.0 
 - US:  Logical Operations  2018 
 - 828p; ill.;  27cm. 
<br/><br/>Includes bibliography and index. 
<br/><br/><label>ISBN: </label>9781642740530 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computing Technology Industry Association--Examinations--Study and teaching.<br/>Computing Technology Industry Association.<br/>Electronic data processing personnel --Certification--Study and teaching.
<br/><br/><label>Dewey Class. No.: </label>004.1607