Ryan, Cornelius, author
Hamilton, 1974
Buku Teks
Hyma, Albert, author
George Wahr, 1953
Buku Teks
Keulen, Mensje van
Atlas, 1992
Buku Teks
Chung, Han-sook, author
Dong-suh-Munhak-sa, 1990
Buku Teks
Osgood, Berrien Cornelius
The Ronald Pres Company, 1951
Buku Teks