Groeneboer, Kees, author
Amsterdam University Press, 1998
Buku Teks
Larson, Laurence M., author
Holt , 1926
Buku Teks
Hall, Walter Phelps, author
Ginn and Company, 1953
Buku Teks
Hubbard, G. E., author
International Secretariat Institute of Pasific Relations , 1943
Buku Teks
Lewycka, Marina, author
Penguin Books, 2006
Buku Teks