1Johnston, Christine ann, The Effects of training in Transactional analysis upon the interpersonal communication Transactions of Graduate students in supervision (EGO states, productive, non - productive). Rutgers the state university of new jersey- new brunswick, 1985,159 pages.
2won js. study on the ego states and coping style of nursing students. journal of the korean academy of women's health nursing.2002 sep;8 (3) :608 - 619 TA today P. 89 - 91.