Administrative Order No. 270 - Irr of Local Government Code

BIR Revenue Regulation 13-04

DOLE Circular No. 1-2012 (Clarifying the Applicability of DO 18-A to Construction Industry)

Revised Rules of HRET (1991)

BIR Revenue Regulations No. 13-04

Proclamation 458 (RA7279)

UFC vs CA (HKO)

Comelec Res 9648