1) Develop an internal checklist to tell scholarly from popular sources.
2) Use multiple databases to survey critical discussion of a work and locate full-text of scholarly articles through the library.
3) Develop a strong understanding of the differences between secondary criticism and primary sources.
4) Find Joycean primary sources and special collections online, including the local libraries and special collections you can visit in-person.
Compare the articles passed out in class, and write down any difference that comes to mind. Be thorough -- any variable you note will be worth discussing, including the contents, methods, author, publisher, vocabulary, graphics, audience, advertising, and more.
Don't be satisfied with your first search. Try a few different sources, go past the first page of results, and check the bibliography of articles and books even if you don't read them. You will see that the same authors and titles re-appear, and you'll start to get a handle on what has made the biggest impact.
This guide to Primary and Secondary Sources from UC - Santa Cruz has helpful questions to begin distinguishing between primary and secondary sources:
First, take a look at the three articles we've been using in class. Where do primary sources appear in the article text? If there are notes or references, where do primary sources appear there?
Second, go through the first two or three pages of the Google searches below and, without clicking on the links, make your best guess as to whether you'd find primary or secondary and popular or scholarly sources behind each link.
Also known as tertiary sources -- encyclopedias (like Wikipedia) are a prime example of tertiary sources.
Try ArchiveGrid first and see which collections are local.
Next try the individual websites of local libraries with large special collections. Special collections have high security, so there are special rules for visiting -- check with the library website, call, and make a research plan before heading over.
Northeastern is part of the Boston Library Consortium, which makes visiting many local libraries easy.