Marfil, M., & Avendaño, C. O. (1999). Erap: I never hired former US senator. Philippine Daily Inquirer.
Lua i Stíl Chicago (17ú heag.)Marfil, Martin, agus Christine O. Avendaño. "Erap: I Never Hired Former US Senator." Philippine Daily Inquirer 1999.
Lua MLA (9ú heag.)Marfil, Martin, agus Christine O. Avendaño. "Erap: I Never Hired Former US Senator." Philippine Daily Inquirer, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.