edited by Tilo Felgenhauer, Karsten Geabler
Routledge, 2018
Buku Teks SO
Holloway, Lewis
Prentice-Hall, 2001
Buku Teks
edited by Nicholas Blomley, Daveid Delaney, Richard T. Ford
Blackwell, 2001
Buku Teks SO
Kaniss, Phyllis
The University of Chicago Press , 1991
Buku Teks SO
Cottle, Simon
Sage, 2003
Buku Teks SO