Lansang, Norma M <br/><br/>
Mathematics 2 :  algebra / 
Norma M. Lansang, Grata R. Barias; edited by Senero G. Africa. 
 - Quezon City :  Abiva Pub. House,  c1983. 
 - viii, 161 p. : ill. 
<br/><br/><label>ISBN: </label>971-116-097-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra