Dunn, John, 1940-
Modern Russian grammar : a practical guide
Routledge, 2009
 Buku Referensi
Frank, Marcella
Modern english : a practical reference guide
Prentice-Hall, 1972
 Buku Teks SO
Waard, Hendrik de
Modern electronics : a practical guide for scientists and engineers
Addison-Wesley, 1966
 Buku Teks
Ross, Claudia
Modern Mandarin Chinese Grammar: a practical guide
Routledge, 2006
 Buku Referensi
Klepko, V.
A practical handbook on stress in Russian
Foreign Languages Publishing House, 1964
 Buku Teks SO