Mouzon, Olin T.
Harper, 1959
Buku Teks
Mouzon, Olin T.
Appleton-Century-Crofts, 1966
Buku Teks
Randall, Clarence B.
The University of Chicago Press, 1954
Buku Teks
Thorp, Willard L., author
John Hopkins Press, 1954
Buku Teks
Krasner, Stephen D.
Princeton University Press, 1978
Buku Teks