Valencia, E.G. Income taxation: principles and laws with accounting applications / Edwin G. Valencia and Gregorio F. Roxas. - Baguio City: Valencia Educational Supply, c2016. - 763 p.; 22 cm. Includes index ISBN: 978-971-93934-4-3 Subjects--Topical Terms: Taxation. Dewey Class. No.: GC 336.24 V152 2016