Edited by Kay Anderson, Mona Domosh, Steve Pile, Nige, Thrift
Sage, 2003
Buku Referensi
Yasushi Watanabe
Elgar, 2018
Buku Teks SO
Routledge, 2018
eBooks
edited by Barbara P. Uzzell, Marcel O. Ponton, Alfredo Ardila
Lawrence Erlbaum Associates, 2007
Buku Teks SO
edited by David Kelleher and Sheila Hillier
Routledge, 1996
Buku Teks SO