Chosen at random from all the resources listed:
- Principles of Systems by Jay W Forrester
- T553_1 Systems Modelling by -- Uknown -- -- Uknown --
- T552_1 Systems Diagramming - OpenLearn by -- Uknown -- -- Uknown --
- Systems Thinking Basics : From Concepts to Causal Loops by Virginia Anderson
- Systems Thinking : Managing Chaos and Complexity by Jamshid Gharajedaghi