Peng, Guangqian, author
China International Press, 2010
Buku Teks
edited by Amritlal B. Shah
Manaktalas, 1966
Buku Teks
Martin, Brian, author
Freedom Press, 1993
Buku Teks
Robertson, David, author
Europa Publications Limited, 1987
Buku Referensi
Deverall, Brian J., author
Cambridge Univesity Press, 1977
Buku Teks