edited by Adolfo Paolini
Edward Elgar Publishing, 2016
Buku Teks
Bruce, Martha, author
Bloomsbury Proffesional, 2012
Buku Teks
Nicolson, Miklos S., author
Prentice-Hall, 1972
Buku Teks
edited by Susan E. Israel, Gerald G. Duffy
Routledge, 2009
Buku Referensi
Lawrence Erlbaum Associates, 2004
Buku Teks