Vierkandt, Alfred, 1867-1953
Ferdinand Enke Verlag Stuttgart, 1949
Buku Teks
Chairul Arifin
ISTN, 1996
Buku Teks SO
Chairul Arifin
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1980
UI - Skripsi Membership
Nietzsche, Friedrich
The Modern Library , [date of publication not identified]
Buku Teks
Nietzsche, Friedrich
Alfred Kroner, 1928
Buku Teks