Philippines (Republic). Bureau of Internal Revenue, Philippines (Republic), Gapultos, S., & Mamangun, M. C. (1969). The omnibus tax law (Rep. Act no. 6110 - effective Sept. 1, 1969) With annotations and implementing memorandum circulars of the Commissioner of Internal Revenue plus schedule of new rates on various taxes. Printed by DM Press.

Philippines (Republic). Bureau of Internal Revenue, Philippines (Republic), Santiago Gapultos, agus Marina C. Mamangun. The Omnibus Tax Law (Rep. Act No. 6110 - Effective Sept. 1, 1969) With Annotations and Implementing Memorandum Circulars of the Commissioner of Internal Revenue Plus Schedule of New Rates on Various Taxes. [Quezon City: Printed by DM Press, 1969.

Philippines (Republic). Bureau of Internal Revenue, et al. The Omnibus Tax Law (Rep. Act No. 6110 - Effective Sept. 1, 1969) With Annotations and Implementing Memorandum Circulars of the Commissioner of Internal Revenue Plus Schedule of New Rates on Various Taxes. Printed by DM Press, 1969.