Mangahas, M. (2009). Can measuring happiness make people happy? Philippine Daily Inquirer.
Cita Chicago (17th ed.)Mangahas, Mahar. "Can Measuring Happiness Make People Happy?" Philippine Daily Inquirer 2009.
Cita MLA (9th ed.)Mangahas, Mahar. "Can Measuring Happiness Make People Happy?" Philippine Daily Inquirer, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.