One, Holy, Catholic and Apostolic: studies in the nature and role of the Church in the modern world
Understanding Karl Rahner: An Introduction to His Life and Thought
Trinitas: Bapa, Firman, Roh Kudus [Judul asli: GOTT - Vater, Sohn und Heilliger Geist]
Commentary on the Documents of Vatican II (Vol.I)
Commentary on the Documents of Vatican II (Vol.II)