• Bishop Barron the Real Presence of Jesus in the Eucharist

• Baltimore Catechism: The Holy Eucharist

• Baltimore Catechism: The Holy Sacrifice of the Mass

• Baltimore Catechism: Holy Communion

• Bishop Barron on the Sacrament of the Eucharist

• POST-SYNODAL APOSTOLIC EXHORTATION SACRAMENTUM CARITATIS OF THE HOLY FATHER BENEDICT XVI

• Saint Quotes on the Real Presence of Christ in the Eucharist

• Eucharistic Miracles of the World: Documented by Bl. Carlo Acutis