@book{Walkenbach_2016, address={Indianapolis, IN}, title={Microsoft® Excel® 2016 bible}, publisher={Wiley}, author={Walkenbach, John}, year={2016} }
@book{Walkenbach_Knovel_2016, address={Indianapolis, IN}, title={Microsoft® Excel® 2016 bible}, url={http://0-app.knovel.com.wam.city.ac.uk/web/toc.v/cid:kpMEB00001/viewerType:toc/root_slug:microsoft-excel-2016?kpromoter=federation}, publisher={Wiley}, author={Walkenbach, John and Knovel}, year={2016} }
@book{Winston_2016, address={Redmond, Washington}, edition={[New edition]}, title={Microsoft Excel 2016 data analysis and business modeling}, publisher={Microsoft Press, a division of Microsoft Corporation}, author={Winston, Wayne L.}, year={2016} }
