Pope John Paul II (1998). “Faith and Reason: Encyclical Letter Fides Et Ratio of the Supreme Pontiff John Paul II to the Bishops of the Catholic Church on the Relationship Between Faith and Reason”
Pope John Paul II (2003). “The Eucharist in the life of the church: encyclical letter of Pope John Paul II, Ecclesia de eucharistia, with three presentations from the 3rd Nigerian National Eucharistic Congress, Ibadan, November 15-17, 2002”