Neve, Brian
Routledge, 1992
Buku Teks
Routledge, 2006
Buku Teks
Hope, Michael, author
Oxford University Press, 2016
eBooks
edited by Ralp Braibanti; Hugh Tinker; Bermard S. Cohn; David C. Potter; James F. Guyot; Sir Charles Collins; Robert N. Kearney; RObert O. Tilman; Merrill Googall
Duke University Press , 1966
Buku Teks
Waltz, Kenneth N., author
Little, Brown, 1967
Buku Teks