Using Interlibrary Loan, you can gain access to almost anything. It takes a few more steps than buying a book or article, but ILL is a free service.
Here is an example from Business Source Premier:

Clicking on highlighted link takes you to OneSearch:

Once you sign in you will see an option to request a digital copy:

Then you will see this screen, prepopulated with your email address:

Once the article is available, you will receive an email with instructions on how to access and download it.