Alarilla, J. G. (2000). Pop quiz, hotshot: Who was 1st to offer free e-mail in RP. Philippine Daily Inquirer.
Chicago-referens (17:e uppl.)Alarilla, Joey G. "Pop Quiz, Hotshot: Who Was 1st to Offer Free E-mail in RP." Philippine Daily Inquirer 2000.
MLA-referens (9:e uppl.)Alarilla, Joey G. "Pop Quiz, Hotshot: Who Was 1st to Offer Free E-mail in RP." Philippine Daily Inquirer, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.