Handelman, Howard
Pearson/Prentice Hall, 2006
Buku Teks
Dixon, Chris J.
Routledge, 2015
Buku Teks
Payne, Geoffrey K.
Leonard-Hill, 1977
Buku Teks
Worsley, Peter
Weidenfeld and Nicholson, 1978
Buku Teks
Gould, W.T.S.
John Wiley, Longman Scientific, 1993
Buku Teks