Smith, Charles W.
Basil Blackwell, 1979
Buku Teks
Currier, Glenn
Harcourt, college Pub., 1997
Buku Teks
Collins, Randall, author
Oxford University Press , 1992
Buku Teks
Schrieke, Bertram Johannes Otto, author
W. van Hoeve, 1960
Buku Teks
Schrieke, Bertram Johannes Otto, author
W. Van Hoeve, 1959
Buku Teks