edited by Sharon B. Sticher, Jane L. Partpart
Westview Press, 1988
Buku Teks
Banton Michael, author
Oxford University Press, 1957
Buku Teks
Corry, Stephen, author
Freeman Press, 2011
Buku Teks
Forrest, Joshua B., author
Westview Press, 1992
Buku Teks
Lloyd, P.C
Frederick A. Praeger, 1968
Buku Teks