Villaseran, D. (2002). Erwin Romulo on human bondage. Philippine Star.
Cita Chicago (17th ed.)Villaseran, Dafort. "Erwin Romulo on Human Bondage." Philippine Star 2002.
Cita MLA (9th ed.)Villaseran, Dafort. "Erwin Romulo on Human Bondage." Philippine Star, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.