References

Clark, R.C. & Mayer, R.E. (2011). //E-Learning and the science of instruction: Proven guidelines for consumer// //and designer// //of multimedia learning// //(//3rd ed.). San Francisco, CA: Pfeiffer.
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Renkl, A. (2011). Instruction based on examples. In R.E. Mayer & P.A. Alexander (Eds.), //Handbook of// //research on learning and instruction.// New York: Routledge.