Coba jelasin Terjemahan dari Petrus Damianus dong

St Peter Damian: Selected Writings on the Spiritual Life, trans Patricia McNulty, (London, 1959)

Zupko, J., article 'Gregory of Rimini' in A Companion to Philosophy in the Middle Ages, e.d Gracia & Noone.

OJ Blum, Saint Peter Damin: His Teaching on the Spiritual Life, (Washington, 1947)

Berger, David, "St. Peter Damian. His Attitude Toward the Jews and the Old Testament", The Yavneh Review, 4 (1965) 80-112.

Owen J. Blum, "The Monitor of the Popes: St. Peter Damian", in Studi Gregoriani vol. 2 (1947), pp 459–76.

John Boswell, Christianity, Social Tolerance, and Homosexuality Chicago (1980).

Pierre J. Payer, 1962. Book of Gomorrah: An Eleventh-Century Treatise against Clerical Homosexual Practices, Waterloo, Ontario: Wilfrid Laurier University Press.