Kendall, Henry M., author
Harcourt, Brace & World, 1962
Buku Teks
Stavrianos, Leften Stavros, author
Allyn and Bacon, 1967
Buku Teks
Russell, Richard Joel, author
Macmillan, 1954, 1951
Buku Teks
Fitzgerald, Walter, author
Methuen, 1952
Buku Teks
Kim, Sung Min, author
Junior Kim Yong Sa, Gyeonggi-Do : Junior Kim Yeong Sa,
Buku Teks