RA 6638 1987-11-26 AN ACT TO ESTABLISH NEW RATES OF BASE
RA 6637 1987-11-21 AN ACT AMENDING SECTIONS ONE AND FOUR OF REPUBLIC ACT NUMBERED SIXTY-SIX HUNDRED AND THIRTY-SIX
RA 6636 1987-11-06 AN ACT RESETTING THE LOCAL ELECTIONS FROM NOVEMBER 9