More About the Sacrament of Confession
Catechism of the Catholic Church: Sacrament of Penance and Reconciliation
Blessed Pope John Paul II’s Encyclical, Rich in Mercy
A Guide to the Sacrament of Confession
Catholic Encyclopedia—The Sacrament of Penance
Our Sunday Visitor’s Encyclopedia of Catholic Doctrine: Confession
Catholic Answers Tract: Confession
Catholic Answers Tract: Mortal Sin
Catholic Answers Tract: Forgiveness of Sins