Paper doesn’t have to written in any academic style but should have a professional tone to it.
Case Study must answer these questions:
What is the organization?
What was the problem?
Why does it matter?
What was the organization’s solution?
How was that solution realized?
How do we know it was successful?
How does it apply to other organizations?
When you use a source, you must cite it by embedding a link to it in the text.