Cruz, I. A. (1999). Re-examining the constitution. IN Separate opinion [column]. Philippine Daily Inquirer.
Lua i Stíl Chicago (17ú heag.)Cruz, Isagani A. "Re-examining the Constitution. IN Separate Opinion [column]." Philippine Daily Inquirer 1999.
Lua MLA (9ú heag.)Cruz, Isagani A. "Re-examining the Constitution. IN Separate Opinion [column]." Philippine Daily Inquirer, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.