Byon, Andrew Sangpil
Basic korean : a grammar and workbook
Routledge, Taylor & Francis Group, 2009
 Buku Teks SO
Yip, Po-ching
Basic Chinese : a grammar and workbook
Routledge, 2009
 Buku Teks
Murray, John
Basic Russian : a grammar and workbook / John Murray and Sarah Smyth.
Routledge , 1999
 Buku Teks SO
Murray, John D. (John Damian)
Intermediate Russian: a grammar and workbook
Routledge, 2001
 Buku Teks
Miell, Anna
Intermediate German : a grammar and workbook
Routledge, 2006
 Buku Teks SO