Boyle, Leonard E. A Short Guide to St. Clement’s, Rome. Rome: Collegio San Clemente, 1989.
Hatlie, Peter. “Emperor Hadrian (76-138, r. 117-38 CE) at Castel Sant’Angelo, The Pantheon, and The Tempio di Venere e Roma” in People and Places of the Roman Past: The Educated Traveller’s Guide. Yorkshire: Arc Humanities Press, 2019. EBSCOhost.
Krautheimer, Richard. Early Christian and Byzantine Architecture. Baltimore: Penguin Books. 1965. “The Constantinian Basilica.” Dumbarton Oaks Papers 21 , 1967, 115–40. https://doi-org.cyrano.ucmo.edu/10.2307/1291261.
Marder, Tod A., and Mark Wilson Jones. The Pantheon: From Antiquity to the Present.
Cambridge: Cambridge University Press, 2015. EBSCOhost.
McKitterick, Rosamond, Osborne, John, Richardson, Carol M., and Story, Joanna. Old Saint
Peter’s, Rome. New York: Cambridge University Press, 2013.