Birkenmayer, Sigmund S.
The Hague, 1968
Buku Teks
Yuriev, Y.
Foreign Languages Pub. House, 1958
Buku Teks
Pearson, Hesketh, author
London Methuan and Company 1946
Buku Teks
Erwin Arnada, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1988
UI - Skripsi Membership
[publisher not identified], [date of publication not identified]
Naskah