Ziegenfuss, W., author
Berlin de Gruyter 1949
Buku Referensi
Nietzsche, Friedrich, author
Buku Teks
D. Reidel Publishing : Dordrecht-Holland
Majalah, Jurnal, Buletin
Coates, John
Cambridge Cambridge University Press 1996,
Buku Teks
Praha : Universita Karlova
Majalah, Jurnal, Buletin