Ethier, Wilferd J.
W.W. Norton & Company , 1988
Buku Teks
by George Zis ... [et al.]
Longman, 1988
Buku Teks
Salvatore, Dominick, author
Prentice-Hall, 1995
Buku Teks
Salvatore, Dominick, author
John Wiley & Sons, 2007
Buku Teks
Walter, Ingo, author
John Wiley & Sons, 1981
Buku Teks