Slager, D. (2016). Essential Excel 2016: A step-by-step guide. apress.
Tohutoru Kātū Chicago (17th ed.)Slager, David. Essential Excel 2016: A Step-by-step Guide. usa: apress, 2016.
Tohutoro MLA (9th ed.)Slager, David. Essential Excel 2016: A Step-by-step Guide. apress, 2016.
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