Steffy, Gary R., author
Van Nostrand Reinhold, 1990
Buku Teks
edited by Joseph N. Boaz
John Wiley & Sons, 1970
Buku Referensi
Ramsey, Charles George, 1884-1963, author
John Wiley & Sons, 2000
Buku Teks
edited by Adam Hardy and Necdet Teymur
Tuestion Press, 1996
Buku Teks
Wittkower, Rudolf, author
Academy Editions, 1998
Buku Teks