TY  - BOOK
AU  - Cortero,Wilma Pontillas
TI  - Mga Makakalikasang Aralin sa Pagdulong Marungko
U1  - 372.414 MAED 
PY  - 2003///
CY  - San Miguel, Iriga City
PB  - University of Saint Anthony
N1  - Includes bibliographical references
ER  -