Japa, D. P. (1999). Learn how to lessen stress at work in one day. Philippine Daily Inquirer.
Chicago-referens (17:e uppl.)Japa, Divina Paredes. "Learn How to Lessen Stress at Work in One Day." Philippine Daily Inquirer 1999.
MLA-referens (9:e uppl.)Japa, Divina Paredes. "Learn How to Lessen Stress at Work in One Day." Philippine Daily Inquirer, 1999.
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