Comandante, Felipe L. Jr., Differential calculus : made easy / Felipe L. Comandante Jr. - Metric Edition. - Mandaluyong City : National Book Store. 2005 - 410 pages : graphs, tables ; 26 cm. ISBN: 971086520X Subjects--Topical Terms: Differential calculus. Differential equations. Differential forms. Dewey Class. No.: 515.33 / C73d