Books: The secondary sources you've already read and taken notes on may either contain primary sources or provide the citations so you can track them down yourself. When searching in the catalog for books with primary sources, look for words like "a documentary history" or "sources." Also look for clues within the text like block quotes and distinct sections with a different author.
Databases. Many of the databases you looked at in the Reference Sources tab have primary sources within them. Those with primary sources are relisted here. Try playing with search filters to make sure you are looking at primary sources in the search results.
Websites. Below are a few websites with primary sources. Make sure to note the difference between any introductory text and the primary source itself.
If you're not sure if you're looking at a primary source, just ask a librarian for help!
This database presents reference articles on the full scope of world history from prehistory through the 1500s, with special topic centers on key civilizations and regions.
The Artstor on JSTOR digital library features a wide range of multidisciplinary content from some of the world’s top museums, artists, libraries, and photo archives.
This database explores ancient civilizations, dynasties, and empires and profiles city-states, countries, and regions of the ancient and medieval world, encompassing intellectual developments, wars and cooperation, religion, cultural practices, and more.
This eBook is a collection of primary sources. Try volume 2, which covers "The Middle Ages and the Renaissance."