Powelson, John P., author
McGraw-Hill , 1964
Buku Teks
Rivkin, Malcolm D., author
Frederick A. Praeger, 1965
Buku Teks
Smith, J.W., author
New Worlds Press, 1989
Buku Teks
Fillol, Thomas Roberto
MIT Press, 1961
Buku Teks
Howe, Frederic C., author
Coward-McCann, 1936
Buku Teks