Modern college algebra  / 
Dayrit, Benjamin C. ; Yap, Avelina M. 
 - rev.ed. 
 - Manila :  Rex Book Store, Inc.,  2002. 
 - vii, 238 p.; 25.cm. 
<br/><br/>includes appendix 
<br/><br/><label>ISBN: </label>971233354X 
<br/><br/><label>Dewey Class. No.: </label>Fil 512 D273 2002