Lee, Hansol H.B.
Korean grammar
Oxford University Pres, 1989
Buku Referensi
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
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In Ku Kim-marshall
An Intermediate Korean reader
Buku Teks
Yeon, Jaehoon
Korean : a comprehensive grammar
Routledge, 2011
Buku Teks