O'Leary, T. J. (2011). Microsoft Excel 2010: A case approach. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoO'Leary, Timothy J. Microsoft Excel 2010: A Case Approach. New York: McGraw-Hill, 2011.
Deismireacht MLAO'Leary, Timothy J. Microsoft Excel 2010: A Case Approach. New York: McGraw-Hill, 2011.
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