Coba jelasin Baca juga dari Keutamaan Petrus dong

Addis, William E. & Thomas Arnold (rev. T.B. Scannell). Catholic Dictionary. (edisi ke-9) London: Virtue & Co., 1925. (Menyajikan kutipan-kutipan yang memakai kata "πέτρος" dengan arti "batu karang" di dalam karya-karya tulis klasik)

Chadwick, Henry. The Church in Ancient Society: From Galilee to Gregory the Great. Oxford: Oxford University Press, 2001.

Collins, Paul. Upon This Rock: The Popes and their Changing Roles. Melbourne: Melbourne University Press, 2000.

Evans, G.R. The Church in the Early Middle Ages. I.B. Tauris: New York, 2007.

Maxwell-Stuart, P.G. Chronicle of the Popes: the Reign-by-Reign Record of the Papacy from St. Peter to the Present, Edisi ke-2, London : Thames & Hudson, 2006.

Meyendorff, John, (penyunting) The Primacy of Peter: Essays in Ecclesiology and the Early Church. ()

Perkins, Pheme. Peter: Apostle for the Whole Church. Columbia: University of South Carolina Press, 1994.

Pham, John-Peter. Heirs of the Fisherman: Behind the Scenes of Papal Death and Succession. New York: Oxford University Press, 2004.

Ray, Stephen K. Upon This Rock: St. Peter and the Primacy of Rome in Scripture and the Early Church. ()

Webster, William. "The Matthew 16 Controversy". Calvary Press, 1996.  ()

Winter, Michael M. Saint Peter and the Popes. Baltimore: Helicon Press, 1960.