Mearns, Dave, author
Sage Publications, 2003
Buku Teks
Casemore, Roger
Sage Publications, 2006
Buku Teks
Tolan, Janet, author
Sage, 2003
Buku Teks
Tilly, Liz, author
Learning Matters, 2011
Buku Teks
Mearns, Dave, author
Sage, 2003
Buku Teks
edited by Ira B. Lamster
John Wiley and Sons, 2014
Buku Teks