Sera, Samuel A. <br/><br/>
Solid waste management practices of pupils of Tuao Central Elementary School 
Samuel A. Sera 
 - Mallig, Isabela  Mallig Plains Colleges  2011 
 - vii, 66p. 
<br/><br/>Education 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Education
<br/><br/><label>LC Class. No.: </label>CD-02496t