The Death penalty today
edited by Robert M. Bohm
CRC Pres, 2008
 Buku Teks
Hood, Roger G.
The death penalty : a worldwide perspective
Oxford Univesity Press, 2015
 Buku Teks
Milner's cases and materials on contracts
edited by S.M. Waddams
University of Toronto Press, 1971
 Buku Teks
Murray, John Edward
Cases and materials on contracts
Bobbs-Merrill, 1976
 Buku Teks
Prosser, William L.
Cases and materials on torts
Foundation Press, 1962
 Buku Teks