(2007). Filipinos upbeat on 08 survey. Philippine Daily Inquirer.
Chicago Style aipamena"Filipinos Upbeat on 08 Survey." Philippine Daily Inquirer 2007.
MLA aipamena"Filipinos Upbeat on 08 Survey." Philippine Daily Inquirer, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.