BIR MEMORANDUM CIRCULAR NO. 31-2009, June 15, 2009
CIRCULARIZING THE MEMORANDUM OF THE COMMISSIONER DISALLOWING BANGKO SENTRAL NG PILIPINAS CLAIMED INTEREST EXPENSE FOR TAXABLE YEAR 2005
National Administrative Register June 15, 2009
Text Available at Office of the National Administrative Register, U. P. Law Complex, Diliman, Quezon City.
Adopted: 15 June 2009