Frank Cass & Co. Ltd.,
Majalah, Jurnal, Buletin
Sophie Laws, Caroline Harper, Nicola JOnes, Rachel Marcus
SAGE, 2013
Buku Teks
edited by Debra Ann Noumair, Abraham B. Shani
Emerald, 2016
eBooks
Costantino Thanos, Francesca Borri, Leonardo Candela, editor
Springer, 2007
Buku Teks
Batty, J.
Hampshire Gower Publishing , 1976
Buku Teks