(2004). Marketing research. Boston: McGraw- Hill.
Trích dẫn kiểu ChicagoMarketing Research. Boston: McGraw- Hill, 2004.
MLA citiranjeMarketing Research. Boston: McGraw- Hill, 2004.
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(2004). Marketing research. Boston: McGraw- Hill.
Trích dẫn kiểu ChicagoMarketing Research. Boston: McGraw- Hill, 2004.
MLA citiranjeMarketing Research. Boston: McGraw- Hill, 2004.