Wypler, Wojciech. “Changes in the Self-Image Among the Participants of Neurolinguistic Programming Training”. Studia Psychologica: Theoria et praxis, no. 5 (August 22, 2004): 177–185. Accessed December 6, 2025. https://czasopisma.uksw.edu.pl/index.php/sp/article/view/2600.