Salvatore, Dominick, author
Erlangga, 2002
Buku Teks
Worthington, Ian, 1946-, author
Prentice-Hall, 2001
Buku Teks
Townsend, Harry, author
Routledge , 1995
Buku Teks
Salvatore, Dominick, author
McGraw-Hill, 1996
Buku Teks
Salvatore, Dominick, author
McGraw-Hill, 1993
Buku Teks