A study of the difficulties of novice programmers.
Essi L, Kirsti Ala-Mutka, Hannu-Matti J. (2005). ¿A study of the difficulties of novice programmers¿. In Proceedings of the 10th annual SIGCSE conference on Innovation and technology in computer science education (ITiCSE '05).ACM, New York, NY, USA, 14-18.
2005