Reference materials like handbooks and encyclopedias provide important background information for understanding your topics. These titles include basic guidebooks on business writing in general, as well as some business and general encyclopedias that can be used to learn more about your area of interest.
Remember that when you are looking at encyclopedias, you may need to look at your specific topic more broadly in order to find an entry to is relevant to you.
These reference titles will supplement what you are learning in class regarding business writing. They can be good sources of examples and best practices.
These are specialized encyclopedias that focus on business-related topics. They can be good sources for overviews of broader subject areas and can provide useful search term options.
Look beyond Wikipedia with these excellent scholarly resources that will help you more fully understand key concepts and theories.