Nevins, Allan, 1890-1971
John D. Rockefeller : the heroic age of American enterprise
Charles Scribner,s Sons, 1940
 Buku Teks SO
Worsley, Giles
Classical architecture in Britain : the Heroic Age / Giles Worsley.
Yale University Press, 1995
 Buku Teks SO
Nevins, Allan, 1890-1971, editor
John D. Rockefeller : the heroic age of American enterprise / by Allan Nevin
Charles Scribner,s Sons, 1940
 Buku Klasik
Wen, Kang
The tale of heroic sons and Daughters
New World Press, 2003
 Buku Teks
Heroic with grace : legendary women of Japan
edited by Chieko Irie Mulhern
East Gate Book, 1991
 Buku Teks SO