Latin American News Sources
United States News Sources
The following books collect major primary source documents, translated into English, from various Latin American countries. They're a great place to start for the most important primary sources related to the topic you are researching.
Tredway Library and I-Share have a large variety of books--both print and electronic--that you may wish to consult as primary sources. In OneSearch (below), begin at the Advanced Search screen and limit to "ALiCat only" for books at Augustana or "All I-Share libraries" to search across Illinois.