Business World. (2008). Business world top 1000 corporations in the Philippines. Business World.
Cita Chicago (17th ed.)Business World. Business World Top 1000 Corporations in the Philippines. Quezon City: Business World, 2008.
Cita MLA (9th ed.)Business World. Business World Top 1000 Corporations in the Philippines. Business World, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.