1. Computer Science Teachers Association. Operational definition of computational thinking. {Online}. Available: http://www.csta.acm.org/Curriculum/sub/CurrFiles/CompThinkingFlyer.pdf Computer Science Teachers Association. Operational definition of computational thinking. {Online}. Available: http://www.csta.acm.org/Curriculum/sub/CurrFiles/CompThinkingFlyer.pdf
2. Computing at School. Computational thinking: A guide for teachers. {Online}. Available: http://community.computingatschool.org.uk/files/6695/original.pdf Computing at School. Computational thinking: A guide for teachers. {Online}. Available: http://community.computingatschool.org.uk/files/6695/original.pdf
3. Computational Thinking in K-9 Education
4. Computational thinking