Jones, Leo
Let's talk 3: teacher's manual / Leo Jones
Cambridge University Press, 2008
 Buku Teks
Jones, Leo
Let's talk 2 : teacher's manual
cambridge University Press , 2009
 Buku Teks
Jones, Leo
Let's talk 1 : Teacher's manual
Cambridge University Press , 2011
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Puchta, Herbert
English in mind : student's book 3
Cambridge University Press, 2010
 Buku Teks
Vyatyutnev, Mark Nikolayevich
Русский язык 3 = Russkij yazyk 3
Pedagogika, 1973
 Buku Referensi