CSS and networking:  guide for CCNA and CSS (NC II) 
/ Marygin E. Sarmiento...[et. al.]. 
 - Intramuros, Manila:  Unlimited book library services & publishing,  ©2019. 
 - 366p.:  ill.;  26cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>978-624-427-046-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers --Maintenance and repair
<br/><br/><label>Dewey Class. No.: </label>GC 004.16 C958 2019