Philippines. Bureau of Internal Revenue.

• 1978 & 1979 B.I.R. rulings and revenue regulations
• 1975 B.I.R. rulings and complete revenue regulations of 1975
• Business tax regulations of the Bureau of Internal Revenue (1962-1984)
• Complete 1972 numbered B.I.R. rulings
• Complete 1986 numbered B.I.R. rulings
• Complete B.I.R. rulings ..
• Depreciation guideline & rules
• Income tax regulations of the Bureau of Internal Revenue (1962-1983)
• Report on the operation of the Bureau of Internal Revenue since its organization in 1904