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3. Beard, C.M., & Wilson J. P. (2006). Experiential learning: a best practice handbook for educators and trainers. Kogan Page Publishers, London.
4. Designing for usability and effectiveness in a resource rich learning system;Boyle;East-West Journal of Computers in Education,1994
5. The humanistic paradigm in education;De Carvalho;The Humanistic Psychologist,1991