Niblick, J. (2013). The profitable consultant: Starting, growing, and selling your expertise. Hoboken: Wiley.
Trích dẫn kiểu ChicagoNiblick, Jay. The Profitable Consultant: Starting, Growing, and Selling Your Expertise. Hoboken: Wiley, 2013.
MLA CitationNiblick, Jay. The Profitable Consultant: Starting, Growing, and Selling Your Expertise. Hoboken: Wiley, 2013.
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