Rogers, Lester B.
Henry Holt and Company, 1960
Buku Teks
Cook, Chris
Macmillan, 1990
Buku Referensi
Teed, Peter
Oxford University Press , 1992
Buku Referensi
John Coatsworth, Juan Cole, Michael P. Hanagan, Peter C. Perdue, Charles Tilly, Louise Tilly, authors
Cambridge University Press, 2015
Buku Teks
Rae, John B.
McGraw-Hill, 1949
Buku Teks