Dziuba, Andrzej. “Apostolic Penitentiary, The Feast of Forgiveness With Pope Francis. Subsidium for Confession and Indulgences, Libreria Editrice Vaticana, Vatican City 2017, Pp. 99”. Canon Law. Legal and Historical Quarterly 61, no. 2 (September 6, 2018): 189–191. Accessed December 8, 2025. https://czasopisma.uksw.edu.pl/index.php/pk/article/view/8971.