Jane Case-Smith, Jane Clifford O'Brien, editor
Elsevier, 2015
Buku Teks
Edited by Amnita Atwal, Anne Mclntyre
Wiley-Blackwell, 2013
Buku Teks
Rybski, Melinda., author
N.J. : SLACK, 2012
Buku Teks
edited by Madeleine Mooney and Claire Ireson
John Wiley & Sons, 2009
Buku Teks
Rice, Martin S., author
Slack Incorporated, Thorofare, NJ., 2019
Buku Teks