APA-referens (7:e uppl.)

Echanis, E. S. (2003). The evolution of the equity admission system in U.P. College of Business Administration, University of the Philippines.

Chicago-referens (17:e uppl.)

Echanis, Erlinda S. The Evolution of the Equity Admission System in U.P. Quezon City: College of Business Administration, University of the Philippines, 2003.

MLA-referens (9:e uppl.)

Echanis, Erlinda S. The Evolution of the Equity Admission System in U.P. College of Business Administration, University of the Philippines, 2003.