Chosen at random from all the resources listed:
- Soft Systems Methodology in Action by Jim Scholes, Peter B. Checkland
- UML for Systems Engineering (Second Edition) by Jon Holt
- The Art of Systems Architecting, Third Edition by E.R. Rechtin, M.W. Maier
- T551_1 Systems Thinking and Practice by -- Uknown -- -- Uknown --
- Systems Thinking and Modelling: Understanding Change and Complexity by Kambiz Maani, Robert Cavana