You can access Business Source Premier on the library's Databases page or simply by using this link:  https://login.ezproxy.usd.edu/login?url=http://search.ebscohost.com/login.asp?profile=web&defaultdb=buh.  Since this is an EbscoHOST database, you can search it like you search Academic Search Premier, a frequently used database that we teach in ENGL 101.  If you don't remember how to search it, you can refer to the "Help" tab on the top of the screen.