Gottfried Byron S. (2003). Spreadsheet Tools for Engineers using Excel including Excel 2002 ( sách photocopy) (In lần thứ 1.). American: McGraw Hill.
Παραπομπή Chicago StyleGottfried Byron S. Spreadsheet Tools for Engineers Using Excel Including Excel 2002 ( Sách Photocopy). In lần thứ 1. American: McGraw Hill, 2003.
Παραπομπή MLAGottfried Byron S. Spreadsheet Tools for Engineers Using Excel Including Excel 2002 ( Sách Photocopy). In lần thứ 1. American: McGraw Hill, 2003.
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