References
BBC (2013). Retrieved from: http://www.bbc.co.uk/schools/wordsandpictures/phonics/sandcastle/index.shtml
Scootle Education Services Australia (2013). The National Digital Learning Resources Network is managed by Education Services Australia. Retrieved from: http://www.scootle.edu.au/ec/curriculum?learningarea=%22English%22&menu=1
Xtranormal Inc. (2013) Retrieved from: http://www.xtranormal.com/