De Vries-Schot, Margreet, Joseph z.t. Pieper, and Marinus H.f. Van Uden. “Mature Religiosity Scale: Validity of a New Questionnaire”. European Journal of Mental Health 7, no. 1 (June 6, 2012): 57–71. Accessed September 20, 2024. https://ejmh.semmelweis.hu/index.php/ejmh/article/view/81.