Goodman-Stephens, Bryan
Zickzack : arbeitbogen 1 & 2
Arnold-Wheaton, 1987
 Buku Teks
Byon, Andrew Sangpil
Basic korean : a grammar and workbook
Routledge, Taylor & Francis Group, 2009
 Buku Teks
Murray, John
Basic Russian : a grammar and workbook / John Murray and Sarah Smyth.
Routledge , 1999
 Buku Teks
Azar, Betty Schrampfer, 1941-
Understanding and using English grammar
Prentice Hall Regents, 1989
 Buku Referensi
Azar, Betty Schrampfer, 1941-
Basic english grammar
Prentice Hall Regents, 1995
 Buku Teks