Azucena, E. (2008). AltiGen Communications Philippines Inc: Offering evolving solutions. Enterprise.
Cita Chicago (17th ed.)Azucena, Eugene. "AltiGen Communications Philippines Inc: Offering Evolving Solutions." Enterprise 2008.
Cita MLA (9th ed.)Azucena, Eugene. "AltiGen Communications Philippines Inc: Offering Evolving Solutions." Enterprise, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.