Norman, S. (2003). We mean business: An elementary course in business English. Student's book and workbook. TP Hồ Chí Minh.
Chicago-tyylinen lähdeviittausNorman, Susan. We Mean Business: An Elementary Course in Business English. Student's Book and Workbook. TP Hồ Chí Minh, 2003.
MLA-viiteNorman, Susan. We Mean Business: An Elementary Course in Business English. Student's Book and Workbook. TP Hồ Chí Minh, 2003.
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