Benigno, T. C. (2003). Parliamentary system not for Philippines: The wherefores [column]. Philippine Star.
Chicago Style aipamenaBenigno, Teodoro C. "Parliamentary System Not for Philippines: The Wherefores [column]." Philippine Star 2003.
MLA aipamenaBenigno, Teodoro C. "Parliamentary System Not for Philippines: The Wherefores [column]." Philippine Star, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.