Arroyo, D. M. (2001). Making big money by giving e-mail addresses for free. Philippine Daily Inquirer.
Cita Chicago (17th ed.)Arroyo, Dennis M. "Making Big Money by Giving E-mail Addresses for Free." Philippine Daily Inquirer 2001.
Cita MLA (9th ed.)Arroyo, Dennis M. "Making Big Money by Giving E-mail Addresses for Free." Philippine Daily Inquirer, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.