Cervillon, Carmelita C. Mathematics of investment : a worktext / Carmelita C. Cervillon, Grace O. Aoana, Buencamino O. Lomboy. - Mandaluyong City : National Book Store, c2003. - 224 pages ; 25 cm. References: page 224. ISBN: 9710863908 Subjects--Topical Terms: Business arithmetic--worktext.