OLSZEWSKA, Maria Jolanta. Priesthood as a road to sainthood. Fr. Jan Zieja’s life by the Gospel. Outlined. Język - Szkoła - Religia, [S. l.], v. 9, n. 1, p. 55–67, 2014. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/JSR/article/view/575. Acesso em: 18 may. 2024.