Echeminada, P. (1998). M'danao tribesmen don't need viagra. Philippine Star.
Cita Chicago (17th ed.)Echeminada, Perseus. "M'danao Tribesmen Don't Need Viagra." Philippine Star 1998.
Cita MLA (9th ed.)Echeminada, Perseus. "M'danao Tribesmen Don't Need Viagra." Philippine Star, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.