Dumaguing, Lita D. <br/><br/>
Solution analysis of mathematics problems of grade 9 students in Burgos District , La Union / 
Lita D. Dumaguing. 
 - City of San Fernando, La Union :   [s.n.],  2017. 
 - xv, 278 pages :  illustration ;  28 centimeter. 
<br/><br/>Bibliography: pages 223-227. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Secondary education--Mathematics.
<br/><br/><label>Dewey Class. No.: </label>TH 372.7 D89s 2017