Gaspersz, V. (2005). ISO 9001: 2000 and continual quality improvement. Gramedia Pustaka Utama.
Chicago Style (17. basım) AtıfGaspersz, Vincent. ISO 9001: 2000 and Continual Quality Improvement. Gramedia Pustaka Utama, 2005.
MLA (8th ed.) AtıfGaspersz, Vincent. ISO 9001: 2000 and Continual Quality Improvement. Gramedia Pustaka Utama, 2005.
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