Gleave, J. and Cole-Hamilton, I. (2012) A world without play : a literature review. Available at: http://www.playengland.org.uk/media/371031/a-world-without-play-literature-review-2012.pdf
Santer, J. and Griffiths, C. with Goodall, D. (2007) 'Perspectives on play' in Free play in early chilldhood. Available at: http://www.playengland.org.uk/media/120426/free-play-in-early-childhood.pdf
You can use the A-Z eJournals search to check for the following publications:
Children, Play, and Development by 
Playing and Reality by 
