De Leon, Hector S. The Fundamentals of taxation / Hector S. De Leon. - Twelfth edition. -- 1998 - Manila : Rex Book Store, 1998 - xxvi, 343 pages ; 22 cm ISBN: 9712324184 Subjects--Topical Terms: Taxation -- Law and legislation -- Philippines.LC Class. No.: KF 5624.6 / .D3777 1998