Alunan, M. J. (2001). Serious problems threaten viability of fertilizer industry. Philippine Star.
Cita Chicago (17th ed.)Alunan, Michael Jose. "Serious Problems Threaten Viability of Fertilizer Industry." Philippine Star 2001.
Cita MLA (9th ed.)Alunan, Michael Jose. "Serious Problems Threaten Viability of Fertilizer Industry." Philippine Star, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.