Nasution, J. U., author
FSUI, 1961
Buku Klasik
Nasution, Mulia, author
Djambatan , 2000
Buku Teks
[publisher not identified], [date of publication not identified]
Naskah
Charles-Rouse, F.
Paris Hachette 1952
Buku Teks
Korn, V.E., author
Bhratara, 1972
Buku Klasik