Hyland, Ken
Second language writing
Cambridge University Press, 2007
 Buku Teks SO
Exploring the dynamics of second language writing
Barbara Kroll, editor
Cambridge University Press, 2003
 Buku Teks SO
Second language development: trends and issues
edited by Sascha W. Felix
Gunter Narr Verlag, 1980
 Buku Teks SO
Second language writing : research insights for the classroom
editedby Barbara Kroll
Cambridge University Press, 1990
 Buku Teks SO
Second language writing : research insights for the classroom
edited by Barbara Kroll
Cambridge University Press, 1990
 Buku Teks