edited by Josef Gugler
Cambridge University Press, 2004
Buku Teks
Palen, J. John, author
McGraw-Hill, 1987
Buku Teks
edited by Alice O'Connor, Chris Tilly and Lawrence D. Bobo
Russel Sage Foundations, 2001
Buku Teks
Richardson, Boyce
New Press, 1972
Buku Teks
edited by Mirjana Ristic and Sybille Frank
Routledge, 2019
Buku Teks