Wheare, K. C.
Pustaka Eureka, 1996
Buku Teks
McClosky, Herbert
McGraw-Hill, 1960
Buku Teks
Goldmand, Marshal I.
The Free Press of Glencoe, 1963
Buku Teks
Skosyrev, P.
Foreign Languages Publishing House , 1956
Buku Teks
Poltorak, A.
Foreign Languages House, 1959
Buku Teks