(2003). Call Center bags award for environment safety and health. Philippine Daily Inquirer.
Chicago-viite (17. p.)"Call Center Bags Award for Environment Safety and Health." Philippine Daily Inquirer 2003.
MLA-viite (9. p.)"Call Center Bags Award for Environment Safety and Health." Philippine Daily Inquirer, 2003.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.