Tapang, G. (2010). The mathematics of Hacienda Luisita. IN Prometheus bound [column]. Manila Times.
Cita Chicago (17th ed.)Tapang, Giovanni. "The Mathematics of Hacienda Luisita. IN Prometheus Bound [column]." Manila Times 2010.
Cita MLA (9th ed.)Tapang, Giovanni. "The Mathematics of Hacienda Luisita. IN Prometheus Bound [column]." Manila Times, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.