Schapiro, J. Salwyn, author
D. Van Nostrand, 1958
Buku Teks
Yeomans, Richard, author
Garnet, 2006
Buku Teks
Petersen, Andrew, author
Andrew Petersen, 1996
Buku Referensi
Hoag, John D., author
George Braziller, 1963
Buku Teks
Kostof, Spiro, author
Oxford University Press, 1995
Buku Teks