APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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