Ancheta, Marina U. <br/><br/>
Curriculum-based workbook and teacher's guide in Science and Technology I 
Marina U. Ancheta 
 -  2005 
 - xii, 322 leaves  28 cm. 
<br/><br/> Thesis (M.A.Ed. - Sci Ed) -- Mariano Marcos State University-Graduate School, Laoag City 
<br/><br/>Bibliography: leaves 299-301