Jonathan Bradshaw and Roy Sainsbury, editors
Routledge, Taylor & Francis Group, 2019
Buku Teks
Mason, Jennifer, author
Sage, 2009
Buku Teks
Hatim, Basil, author
Pearson Education , 2001
Buku Teks
McKay, Sandra Lee, author
Mahwah, New Jersey, 2006
Buku Teks
Ngeow Chow-Bing, editor
Routledge, Taylor & Francis Group, 2019
Buku Teks