Murray, John D. [John Damian]
Intermediate Russian: a grammar and workbook
Routledge, 2001
 Buku Teks
Oosterhoff, Jenneke A.
Basic dutch : a grammar and workbook
Routledge, 2009
 Buku Teks
Byon, Andrew Sangpil
Basic korean : a grammar and workbook
Routledge, Taylor & Francis Group, 2009
 Buku Teks SO
Modern German Grammar workbook
by Bill Dodd ... [and others]
Routledge, 1996
 Buku Teks SO
Yip, Po-ching
Basic Chinese : a grammar and workbook
Routledge, 2009
 Buku Teks