APA-viite (7. p.)

Cruz, I. A. (2005). The power of legislative investigation. IN Separate opinion [column]. Philippine Daily Inquirer.

Chicago-viite (17. p.)

Cruz, Isagani A. "The Power of Legislative Investigation. IN Separate Opinion [column]." Philippine Daily Inquirer 2005.

MLA-viite (9. p.)

Cruz, Isagani A. "The Power of Legislative Investigation. IN Separate Opinion [column]." Philippine Daily Inquirer, 2005.