Buckley, Shawn
McGraw-Hill, 1979
Buku Teks
Tyas Usada
Fakultas Teknik Universitas Indonesia, 2004
UI - Tesis (Membership)
Bulgarelli, Jose Francisco Aguilar
Foreign Languages Publishing House, 1984
Buku Teks
tevis, Walter
Doubleday, , 1983
Buku Teks
Dazai, Osamu
Charles E Tuttle, 1992
Buku Teks