Sources can be many things, such as:
* Books: Printed or digital books are a great source for in-depth information.
* Journal articles: These are academic articles published in specialized journals, providing research findings and expert analysis.
* Websites: Websites can be a valuable source, but it's crucial to evaluate their credibility.
* Databases: Online databases like JSTOR or Google Scholar contain a wealth of academic and research materials.
* Interviews: Talking to experts or individuals with firsthand experience can provide valuable insights.
* Primary sources: These are original documents or artifacts, like historical records, letters, or photographs.
It's important to use reliable sources for your assignments and cite them properly.