Chosen at random from all the resources listed:
- Putting Systems to Work by Derek K. Hitchins
- Systems Thinking, Systems Practice (30 Year Retrospective) by Peter B. Checkland
- UML for Systems Engineering by Jon Holt
- Soft Systems Methodology in Action by Jim Scholes, Peter B. Checkland
- Systems Thinking : Managing Chaos and Complexity by Jamshid Gharajedaghi