Timothy Insoll
Routledge, 2001
Buku Teks
Marcy Rockman, Joe Flatman, editor
[Springer, Springer], 2012
eBooks
edited by Mari Pritchard Parker, Elvio Angeloni
McGraw-Hill, 2013
Buku Teks
SPAFA, 1984
Buku Referensi
edited by Jacquetta Hawkes
McGraw-Hill, 1974
Buku Referensi