Villa, R. L. (2002). Guingona returns as President of ruling Lakas party. Manila Bulletin.
Cita Chicago (17th ed.)Villa, Rod L. "Guingona Returns as President of Ruling Lakas Party." Manila Bulletin 2002.
Cita MLA (9th ed.)Villa, Rod L. "Guingona Returns as President of Ruling Lakas Party." Manila Bulletin, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.