Chommie, John C., author
West Publishing, 1968
Buku Teks
Wright, Charles Alan, author
West Publishing, [1983, ]
Buku Referensi
Wright, Charles Alan, author
West Publishing, 1970
Buku Teks
Meyers, Frederick H., author
Richard D. Irwin, 1951
Buku Teks
Budd, John W., author
McGraw-Hill, 2005
Buku Teks