edited by P.M.S. Hacker and J. Raz
Clarendon Press, 1988
Buku Teks
Lacey, Nicola, author
Oxford University Press, 2006
Buku Teks
Fuller, Lon L., author
Yale University Press, 1974
Buku Teks
Fuller, Lon L., author
Yale University Press, 1964
Buku Teks
Spinello, Richard A., author
Jones and Bartlett Learning, 2017
Buku Teks