Ravenscroft, Andrew (2001) "Designing E-learning Interactions in the 21st century: revisiting and rethinking the role of theory" European Journal of Education 36(2): pp. 133-156, página 134, doi10.1111/1467-3435.00056
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Becker, Henry Jay (1993) "A model for improving the performance of integrated learning systems" página 13En Bailey, Gerald D. (editor) (1993) Computer-based integrated learning systems Educational Technology Publications, Englewood Cliffs, Nueva Jersey, pp. 11-31, ISBN 0-87778-256-3
Pritchard, Alan (2009) Ways of learning: learning theories and learning styles in the classroom (2.ª edición) David Fulton, Londres, página 12ISBN 978-0-415-46608-0