Łagosz, Zbigniew. “Esotericism and Coaching, or Modern Personal Development in the Context of the Roots of ‘secret knowledge’”. Humaniora. Czasopismo Internetowe 42, no. 2 (July 14, 2023): 105–115. Accessed August 16, 2024. https://pressto.amu.edu.pl/index.php/h/article/view/38795.