As an online student you have access to all of the databases the Alden Library subscribes to. When you select a database, you will need to log in with your QCC id (qcc plus the id number) and last name in all capital letters. I would start with the business databases found on this page: http://qcc.mass.libguides.com/resourcesAtoZ
Business Source Premiere is a good place to start to look for articles on cost analysis. If you need further assistance, please call the reference desk at (508)854-4366. We can work with you on determining keywords to get to the right articles.