Diah Widiati Kusumawardani, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1986
UI - Skripsi (Membership)
Henning, Friedrich-Wilhelm
Schöningh, 1973
Buku Teks
Emge, Carl August
Frankfurt, 1955
Buku Teks
Luckas, Georg
[T.t.] Luchterhand Verlag 1965
Buku Teks
Humboldt, W. von
Darmstadt Claassen 1949
Buku Teks