Munchen Carl Hanser Verlag 1974
Buku Teks
Hudson, William Henry
London George G. Harrap 1913
Buku Referensi
Oregon : University of Oregon
Majalah, Jurnal, Buletin
Sartre, Jean-Paul
London : Routledge, 1993
Buku Teks
Marcus, Aage
Zurich Atlantis Verlag 1949
Buku Teks