Philippine Business Profiles and Perspectives, Inc. (2012). Top 15000 corporations : the Philippine economy: Reaches the tipping point (Business Profiles 2011-12 edition.). PBPPI.
Cita Chicago (17th ed.)Philippine Business Profiles and Perspectives, Inc. Top 15000 Corporations : The Philippine Economy: Reaches the Tipping Point. Business Profiles 2011-12 edition. Pasig City: PBPPI, 2012.
Cita MLA (9th ed.)Philippine Business Profiles and Perspectives, Inc. Top 15000 Corporations : The Philippine Economy: Reaches the Tipping Point. Business Profiles 2011-12 edition. PBPPI, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.