Mansbach, Richard W., author
Houghton Miffiln, 2000
Buku Teks
Rourke, John T., author
Brooks/Cole, 1986
Buku Teks
Miller, Lynn H., author
Westview Press, 1985
Buku Teks
William I. Hitchcock, Melvyn P. Leffler, Jeffrey W. Legro.
Massachusetts Harvard University Press, 2016
Buku Teks
edited by Enrico Fels, Jan-Frederik Kremer, Katharina Kronenberg
Springer, 2012
eBooks