WALĘCKA-MATYJA, Katarzyna Kamila. Forgiveness and gratitude as predictors of the quality of the interpersonal relationship of adults siblings. Quarterly Journal Fides et Ratio, [S. l.], v. 45, n. 1, p. 104–124, 2021. DOI: 10.34766/fetr.v45i1.695. Disponível em: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/695. Acesso em: 27 jul. 2025.