Salvatore, Dominick
Prentice-Hall, 1998
Buku Teks
Salvatore, Dominick
Prentice-Hall, 1995
Buku Teks
Vaish, M.C.
Oxford & IBH Pub. Co., 1988
Buku Teks
Salvatore, Dominick
John Wiley & Sons, 2007
Buku Teks
Walter, Ingo
John Wiley & Sons, 1981
Buku Teks