Search the resources here for definitions and a general overview for your topic.
Search for books using Saint Louis University Libraries' Catalog
To find titles in the catalog do a Subject search combining the word of your chosen profession with "Professional ethics","Business ethics", or "Ethics" and narrow down by "Case studies".
Still did not locate a specific resource? Try WorldCat, the US union catalog.
To find articles from Business Ethics, search Search SLUth - Search Plus or Business Source Premier databases using the journal title"Business Ethics" in SO Journal/Title Source or SO Publication Name search field and narrow down by your chosen profession and "case studies".