For print sources try the methods below:
Print and audio resources are your first go to sources when starting a paper. Internet articles are great, but it's important to have a larger more comprehensive source. Print sources, like books or scores can also help you understand your topic fully on beginning and more advanced levels. Audio resources are crucial for music papers. Especially with world music, it's tough to be confident about your paper if you haven't listened to the music you are writing about.