Q. Can you help me find articles on wal-mart?

Sure. It's a pretty broad topic and really needs to be narrowed down more. EBSCO databases are your best bet for this topic.

1. I went to databases and selected EBSCO Powersearch from the databases page.
2. Search on Wal-mart.
3. Then go to the left side of the results list and expand Subject. Select Wal-Mart Stores Inc.
4. Also on the left side of result list, select Full Text. 
5. You will still have over 30,000 articles and should narrow down some more--what about Wal-Mart do you want to know? If you aren't sure, just browse the list of articles until you find something that appeals to you. 
6. To cite your articles follow the instructions in the Cite MLA Style guide for EBSCO: