Koo, G. S. (2000). The good, the bad and the urgly: Teachers' pets and pet peeves. Philippine Daily Inquirer.
Cita Chicago (17th ed.)Koo, Grace S. "The Good, the Bad and the Urgly: Teachers' Pets and Pet Peeves." Philippine Daily Inquirer 2000.
Cita MLA (9th ed.)Koo, Grace S. "The Good, the Bad and the Urgly: Teachers' Pets and Pet Peeves." Philippine Daily Inquirer, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.