Birt, I. (2005). Marketing and promoting your business: Products and services. Australia: Pearson Education.
Trích dẫn kiểu ChicagoBirt, Ian. Marketing and Promoting Your Business: Products and Services. Australia: Pearson Education, 2005.
MLA CitationBirt, Ian. Marketing and Promoting Your Business: Products and Services. Australia: Pearson Education, 2005.
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