Papa, J. (2002). Woman inventor nets simple answers to everyday problems. Philippine Daily Inquirer.
Cita Chicago (17th ed.)Papa, Joey. "Woman Inventor Nets Simple Answers to Everyday Problems." Philippine Daily Inquirer 2002.
Cita MLA (9th ed.)Papa, Joey. "Woman Inventor Nets Simple Answers to Everyday Problems." Philippine Daily Inquirer, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.