Johnsson, Roland. “Client Assessment in Transactional Analysis – A Study of the Reliability and Validity of the Ohlsson, Björk and Johnsson Script Questionnaire”. International Journal of Transactional Analysis Research & Practice 2, no. 2 (July 31, 2011): 19–33. Accessed April 25, 2024. https://ijtarp.org/article/view/17061.