Mathematics of investment - Altares, Priscilla S.; Arce, Ma. Teresa B; Aquino, Abner A.; CoPo, Antonio Roland I.; Howe, Asuncion B.; Laddaran, Angeline T.; Mananquil, Claro T.; Sy, Evangeline Agueda G.; Tizon, Helen D.; Villanueva, Antonio; Yao, Ana Maria S.D (Rex Book Store, 2007)