DeGraff, J. (2003). Creativity at work: Developing the right practices to make innovation happen. San Francisco, CA: Jossey-Bass/A Wiley Company.
Trích dẫn kiểu ChicagoDeGraff, Jeff. Creativity At Work: Developing the Right Practices to Make Innovation Happen. San Francisco, CA: Jossey-Bass/A Wiley Company, 2003.
Trích dẫn MLADeGraff, Jeff. Creativity At Work: Developing the Right Practices to Make Innovation Happen. San Francisco, CA: Jossey-Bass/A Wiley Company, 2003.
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