Edited by Berthold K. P. Horn; Michael J. Brooks
Mass. MIT Press, 1989
Buku Teks
Breene, Robert G., Jr.
John Wiley & Sons, 1981
Buku Teks
Eagleton, Clyde
New York University press, 1945
Buku Teks
Snider, Grant
Gramedia Pustaka Utama, 2019
Buku Teks
FitzGerald, Frances, 1940-
Simon & Schuster, 2017
Buku Teks SO