APA-referens (7:e uppl.)

Morales, M. (2002). Mandatory e-filing and e-payment for large taxpayers. IN Tax files [column]. Philippine Daily Inquirer.

Chicago-referens (17:e uppl.)

Morales, Mellany. "Mandatory E-filing and E-payment for Large Taxpayers. IN Tax Files [column]." Philippine Daily Inquirer 2002.

MLA-referens (9:e uppl.)

Morales, Mellany. "Mandatory E-filing and E-payment for Large Taxpayers. IN Tax Files [column]." Philippine Daily Inquirer, 2002.