de Jong, T., & Njoo, M. (1992). Learning and Instruction with computer simulations: learning processes involved. In E. de Corte, M. Linn, H. Mandl & L. Verschaffel (Eds.), Computer-based learning environments and problem solving (pp. 411-429). Berlin, Germany: Springer-Verlag.
Njoo, M., & de Jong, T. (1993). Exploratory learning with
a computer simulation for control theory: Learning processes and
instructional support. Journal of Research in Science Teaching,
30, 821-844.