edited by John E. Tropman, John L. Erlich, Jack Rothman
F.E.Peacock, 1995
Buku Teks
Sautoy, Peter Du, author
Oxford University Press, 1960
Buku Teks
edited by Mayer N. Zald
Quadrangle Books, 1967
Buku Teks
Higgs, Zana Rae, author
FA. Davis, 1985
Buku Teks
Clemen-Stone, Susan, author
Mosby, 1998
Buku Teks