Stuart, Gene S.
America's ancient cities/by Gene S. Stuart; photographed by Richard A. Cooke; painting by H. Tom Hall
Washington D.C. National Geographic Society 1988,
Buku Teks
America
New York: W.W.Norton & Company, 1988,
Buku Referensi
Cho, Hae-il
America
Dong-su-Munhak-sa, 1990
Buku Teks
Ancient jitory
Buku Teks
Bone, Robert G.
Ancient history
Littlefield, Adam, 1957
Buku Teks