Greg Shields의 책

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  Tax Accounting: A Guide for Small Business Owners Wanting to Understand Tax Deductions, and Taxes Related to Payroll, LLCs, Self-Employment, S Corps, and C CorporationsGreg Shields
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  Excel for Beginners: Learn Excel 2016, Including an Introduction to Formulas, Functions, Graphs, Charts, Macros, Modelling, Pivot Tables, Dashboards, Reports, Statistics, Excel Power Query, and MoreGreg Shields