Trawick-Smith, J. (2010). Drawing Back the Lens on Play: A Frame Analysis of Young Children's Play in Puerto Rico. Early Education & Development, 21(4), 536-567. doi:10.1080/10409280903118432
Snodgrass, J. G., Lacy, M. G., Francois Dengah, H. J., & Fagan, J. (2011). Enhancing one life rather than living two: Playing MMOs with offline friends. Computers In Human Behavior, 27(3), 1211-1222. doi:10.1016/j.chb.2011.01.001
TRAWICK-SMITH, J., & DZIURGOT, T. (2010). Untangling Teacher-Child Play Interactions: Do Teacher Education and Experience Influence "Good-Fit" Responses to Children's Play?. Journal of Early Childhood Teacher Education, 31(2), 106-128. doi:10.1080/10901021003781148
Rushton, S. (2011, June). Neuroscience, Early Childhood Education and Play: We are Doing it Right!. Early Childhood Education Journal. pp. 89–94. doi:10.1007/s10643-011-0447-z.
Ramstetter, C. L., Murray, R., & Garner, A. S. (2010). The Crucial Role of Recess in Schools. Journal of School Health, 80(11), 517-526. doi:10.1111/j.1746-1561.2010.00537.x
Oers, B. (2010). Emergent mathematical thinking in the context of play. Educational Studies In Mathematics, 74(1), 23-37. doi:10.1007/s10649-009-9225-x
Anderson, D. C. (2004). The Human-Companion Animal Bond. Reference Librarian, 41(86), 7-24. doi:10.1300/J120v41n86_02