1.
Deptuła M, Borucka A. School Risk Factors in Developing a Sense of Competence by Polish Pupils: Their Fourth and Fifth Year of Learning at Primary School – Longitudinal Studies. PBE [Internet]. 2020 Dec. 30 [cited 2022 Jan. 25];2(31):23-42. Available from: https://apcz.umk.pl/PBE/article/view/PBE.2020.017