edited by Arthur H. Seidman
McGraw-Hill, 1983
Buku Referensi
Seidman, Arthur, author
McGraw-Hill, 1997
Buku Referensi
Pender, Harold, author
John Wiley & Sons, 1950
Buku Referensi
Hanlon, Joseph F., author
McgGraw-Hill Book Company, 1971
Buku Referensi
edited by Edwin H. Gaylord, Charles N. Gayrold
McGraw-Hill, 1979
Buku Referensi