Burke, Karen C., 1951-, author
West Publishing, 1992
Buku Teks
Burke, Karen C.
Thomson/West, 1999
Buku Teks
McKee, William S., author
Warren,Gorham and Lamont, 1978
Buku Teks
Gaffney, Dennis J., author
McGraw-Hill, 1982
Buku Teks
Gaffney, Dennis J., author
McGraw-Hill, 1984
Buku Teks