Graff, Heinz
Edition Leipzig, 1969
Buku Teks
Dhogal, P.S.
Tata McGraw-Hill, 1995
Buku Teks
Rizzoni, Giorgio
McGraw-Hill, 2009
Buku Teks
Kuznetsov, M.
Peace, [Date of publication not identified]
Buku Teks
Carlson, A. Bruce
Addison-Wesley, 1981
Buku Teks