NOSAL, Przemysław. Discrete and Obvious Education Deficiency in Children and Teenagers from High Social Risk Families. Przegląd Badań Edukacyjnych (Educational Studies Review). Online. 12 October 2015. Vol. 1, no. 20, pp. 103-124. [Accessed 1 July 2024]. DOI 10.12775/PBE.2015.038.