Some databases, but not most, have direct links to articles. For many Political Science databases you will need to look for the linker button,
You will then have three options:
If we don't have an article online or in print in the library, you can order it via Interlibrary Loan Service. In most cases you will receive your article online via your MU e-mail account within 2 days. As long as you plan ahead and don't wait until the last minute, you should get your article in plenty of time for your research project. There is no charge for this service.