Pike, Dauglas
Cambridge at the University Press, 1966
Buku Teks
Rock, David
Collins, 2006
Buku Teks
by Colin Legu ... [et al.]
McGraw-Hill, 1980
Buku Teks
Gibney, Frank
Walker and company, 1992
Buku Teks
Sholokhov, Mikhail Aleksandrovich
Forign English Publishing House, [date of publication not identified]
Buku Teks