BIR REVENUE MEMORANDUM ORDER NO. 11-2013, April 22, 2013
PRESCRIBING THE PROCEDURE FOR PROCESSING AND RESPONDING TO REQUESTS FOR OFFICIAL INFORMATION OR DOCUMENTS FROM THE BUREAU OF INTERNAL REVENUE
National Administrative Register April 22, 2013
Text Available at the Office of the National Administrative Register,
U.P. Law Complex, Diliman, Quezon City
U.P. Law Complex, Diliman, Quezon City