Dela Cruz, A. R. (2012). Ang ulo [short story]. Liwayway.
Cita Chicago (17th ed.)Dela Cruz, Ariston Ramon. "Ang Ulo [short Story]." Liwayway 2012.
Cita MLA (9th ed.)Dela Cruz, Ariston Ramon. "Ang Ulo [short Story]." Liwayway, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.