- Compendium of the Catechism of the Catholic Church. www.vatican.va.
- Fay, William. The Real Presence of Jesus Christ in the Sacrament of the Eucharist: Basic Questions and Answers. United States Conference of Catholic Bishops. 2001 [13 December 2015].
the Catholic Church professes that, in the celebration of the Eucharist, bread and wine become the Body and Blood of Jesus Christ through the power of the Holy Ghost and the instrumentality of the priest.
- Internet History Sourcebooks Project. sourcebooks.fordham.edu.
- Lateran Council | Roman Catholicism. Encyclopedia Britannica.
- Hillebrand, Hans J. (编). Transubstantiation. The Oxford Encyclopedia of the Reformation. Oxford University Press. 2005 [2017-05-30]. ISBN 978-0-19-506493-3.