Pinter, Charles C.
McGraw-Hill, 1982
Buku Teks
Narayan, Shanti
S. Chand & Company, 1979
Buku Teks
Whitelaw, Thomas A., author
Blackie Academic & Professional, 1995
Buku Teks
Barnes, Wilfred E., author
D. C. Hearth, 1963
Buku Teks
Spindler, Karlheinz
Marcel Dekker, 1994
Buku Teks