Hikozza, author
KATTA, 2009
Buku Teks
Silva, M.A. de
UNESCO, 1977
Buku Teks
Rosiyan, author
G. Kolff, [date of publication not identified]
Buku Klasik
Nurcholish MA Basyari, editor
Warta Ekonomi, 2011
Buku Teks
Kearney, Robert N.
Cornell University Press, 1973
Buku Teks