Ampongan, Omar Erasmo G Income taxation in the philippines : (for non-BSA) 2/e / Omar Erasmo G. Ampongan - s.l. : s.n., 2012. - 375 pages ; 21 cm Subjects--Topical Terms: Taxation.Income taxation. Dewey Class. No.: Fil./B.Acctg. 336.24 Am526 2012