Nebres, B. F. (1999). Invisible problems in education. IN Commentary [column]. Philippine Daily Inquirer.
Chicago-viite (17. p.)Nebres, Bienvenido F. "Invisible Problems in Education. IN Commentary [column]." Philippine Daily Inquirer 1999.
MLA-viite (9. p.)Nebres, Bienvenido F. "Invisible Problems in Education. IN Commentary [column]." Philippine Daily Inquirer, 1999.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.