Carpenter, S. C.
Melbourne Penguin Books 1953
Buku Teks
Masutani, Fumio
Ciib Press, 1959
Buku Teks
Raptschinsky, Boris, author
Velsen Schuyt [t.th.]
Buku Teks
Munk, Kaj
s-Gravenhage Daamen 1949
Buku Teks
Amsterdam : Free University Amsterdam the Netherlands
Majalah, Jurnal, Buletin