Untalan, A.C. <br/><br/>
Concepts and guidelines in COPAR, 1st ed., 2005 
Untalan, Aaron Cy T. 
 - Manila :   Educational Publishing House,   c2005 
 - xv, 101 pages :   23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>971-513-183-2 
<br/><br/><label>Dewey Class. No.: </label>Fil. 362.1 Un61 2005