Frex, Corazon C.  <br/><br/>
A Community-based curriculum in Biology for the municipalities of Adams, Carasi and Dumalneg  
Corazon C. Frez 
 -  1999 
 - xviii, 220 leaves   28 cm.  
<br/><br/> Thesis (MA Education-Biology) -- Mariano Marcos State University-Graduate School, Laoag City  
<br/><br/>Bibliography: leaves 114-119