Gerardo,Elsa F. <br/><br/>College algebra Elsa F. Gerardo, Luisito C. Elagos, Sergio E. Ymas, Carmelita F. Agalabia, Priscila B. Coligado  - Manila:  Pablo L. Bustamante III Press;  [1999]  - 248pages:  with Illustration;  25 cm. <br/><br/><label>LC Class. No.: </label>QA 154  / .C6976 1999