Bản mẫu:Chú thích DOI/10.2478.2Fv10059-010-0008-0

Witkowski, Tomasz (2011). “Thirty-Five Years of Research on Neuro-Linguistic Programming. NLP Research Data Base. State of the Art or Pseudoscientific Decoration?”. Polish Psychological Bulletin. De Gruyter. 41 (2): 58–66. doi:10.2478/v10059-010-0008-0.