1. Article - Atkinson, R. C., & Shiffrin, R. M. (1968). Human memory: A proposed system and its control processes. Psychology of learning and motivation: II, 249.
2. Url - http://en.wikipedia.org/wiki/Serial_position_effect
3. Url - http://www.simplypsychology.org/primacy-recency.html
4. Video - http://www.youtube.com/watch?v=OSg8RnjQjis
