http://www.teachingexpertise.com/articles/transactional-analysis-classroom-710
Sources:
Source: Klein,Mavis, A Textbook of Transactional Analysis;
Chichester:John Wiley and Sons); 1980.
Newell, Sandra and Jeffery, David. Behavior Management in the Classroom. David Fulton Publications
Wolfgang, Charles H., Solving Discipline And Classroom Management Problems: Methods and Models For Today’s Teachers; John Wiley &Sons, USA, 2001