1.
Wójciak A. Delta Questionnaire – adaptation of the instrument on a group of people with mild intellectual disability and a preliminary analysis of its psychometric properties. FeR [Internet]. 2023 Sep. 22 [cited 2025 Aug. 10];55(3):185-92. Available from: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/1200