Cita APA (7th ed.)

Angeles, E. Y. (1999). Educational challenges we face in the 21st century. Manila Bulletin.

Cita Chicago (17th ed.)

Angeles, Emmanuel Y. "Educational Challenges We Face in the 21st Century." Manila Bulletin 1999.

Cita MLA (9th ed.)

Angeles, Emmanuel Y. "Educational Challenges We Face in the 21st Century." Manila Bulletin, 1999.