Player, Macka
West Publishing, 1992
Buku Teks
Cook, Franklin Henry
Macmillan, 1951
Buku Teks
Stanley, Joyce, 1901-
Warren, Gorham and Lamont, 1971
Buku Teks
Chommie, John C.
West Publishing, 1968
Buku Teks
Wright, Charles Alan
West Publishing, [1983, ]
Buku Referensi