Ortega, R. G. (1997). Kidnappers grab Mindanao trader. Philippine Daily Inquirer.
Lua i Stíl Chicago (17ú heag.)Ortega, Rex G. "Kidnappers Grab Mindanao Trader." Philippine Daily Inquirer 1997.
Lua MLA (9ú heag.)Ortega, Rex G. "Kidnappers Grab Mindanao Trader." Philippine Daily Inquirer, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.