Findlay, Bruce Allyn, author
Stanford University Press, 1952
Buku Teks
Findlay, Bruce Allyn, author
Stanford University Press, 1959
Buku Teks
Braham, Lewis, author
McGraw-Hill, 2011
Buku Teks
edited by Lee Bosher
Taylor & Francis Group, 2008
Buku Teks
Les Ruddock, editor
Taylor and Francis, 2009
Buku Teks