Sanchez, Lemuel C. <br/><br/>
Instructional material in network security and services / 
Lemuel C. Sanchez. 
 - [Bayombong, Nueva Vizcaya] :  [Nueva Vizcaya State University],  2026. 
 - 73 leaves :  illustration ;   33 cm. +  e-copy. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks—Security measures.