Harari, Yuval Noah, author
Harper, 2015
Buku Teks
Andaya, Barbara Watson, author
Cambridge University Press, 2015
Buku Teks
Schwartzman, Helen B., author
Sage Publications, 1993
Buku Teks
Fisher, H.A.L.
Edward Arnold & Co., 1946
Buku Teks
Fisher, H.A.L.
Eyre and Spottiswoode , 1935
Buku Teks