Romeo, Luigi
Amsterdam John Benjamins 1979
Buku Referensi
Seeley, John Robert
JM Dent & Sons, 1932
Buku Teks
Nietzsche, Friedrich Wilhelm, 1844-1900
Cambridge University Press, 2005
Buku Teks SO
Peursen, Cornelis Anthonie van, 1920-
Gramedia Pustaka Utama, 1990
Buku Teks
Program Pascasarjana Universitas Indonesia,
Majalah, Jurnal, Buletin