1. ACM. 2017. Curricula Recommendations. https://www.acm.org/education/curricula-recommendations ACM. 2017. Curricula Recommendations. https://www.acm.org/education/curricula-recommendations
2. CSTA Cyber Innovation Center National Math ACM Code.org and Science Initiative. 2016. K-12 Computer Science Framework. http://www.k12cs.org CSTA Cyber Innovation Center National Math ACM Code.org and Science Initiative. 2016. K-12 Computer Science Framework. http://www.k12cs.org
3. A. Balanskat and K. Engelhardt. 2015. Computing our future: Computer programming and coding. Priorities school curricula and initiatives across Europe. Technical Report. European Schoolnet. A. Balanskat and K. Engelhardt. 2015. Computing our future: Computer programming and coding. Priorities school curricula and initiatives across Europe. Technical Report. European Schoolnet.
4. Computer science unplugged: school students doing real computing without computers;Bell Tim;New Zealand Journal of Applied Computing and Information Technology,2009