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35:22 VM 507-Systems Thinking Part 2 VM 507-Systems Thinking Part 2	VM 507-Systems Thinking Part 2 VM 507 Mod15 SysTh2 vm 507 systems thinking mod 15 flow water stock rate money hose bath pollution bird idea lot accumulation bank advocates bathtub systems environment loop converter stocks From Melinda J Wilkins 99 plays 0
19:34 VM 507-Systems Thinking-14 Habits VM 507-Systems Thinking-14 Habits	VM 507-Systems Thinking-14 Habits VM 507 Mod 15 SysTh Part 1 vm 507 mod 15 vm507 systems thinking systems lot things issue bit animal structure person diagrams salt term future flowers hunger picture models event issues vet approach From Melinda J Wilkins 139 plays 0