List of Other Sources
- https://www.runnersworld.com/training/a20800314/fun-creative-group-workouts/
- http://www.wilderdom.com/games/
- https://www.acefitness.org/
- http://www.europarl.europa.eu
- https://nobaproject.com/modules/motives-and-goals
- ARMSTRONGS HANDBOOK OF HUMAN RESOURCE MANAGEMENT PRACTICE, MOTIVATION
- Critical thinking as an educational ideal, David Hitchcock, May 2011.