1. D. Langdon, G. McKittrick, D. Beede, B. Khan, M. Doms, STEM: Good Jobs Now and for the Future, ESA Issue Brief# 03-11, US Department of Commerce.
2. Doing with understanding: lessons from research on problem-and project-based learning;Barron;J. Learn. Sci.,1998
3. Computer-supported collaborative learning: an historical perspective;Stahl;Camb. Handbook Learn. Sci.,2006
4. The learning effects of computer simulations in science education;Rutten;Comput. Educ.,2012
5. M. Behrisch, L. Bieker, J. Erdmann, D. Krajzewicz, Sumo-simulation of urban mobility-an overview, in: SIMUL 2011, The Third International Conference on Advances in System Simulation, 2011, pp. 55–60.