TY  - BOOK
AU  - Untalan, A.C.
TI  - Concepts and guidelines in COPAR, 1st ed., 2005
SN  - 971-513-183-2
U1  - Fil. 362.1 Un61 2005 
PY  - 2005///
CY  - Manila : 
PB  - Educational Publishing House, 
N1  - Includes bibliographical references and index
ER  -