Kaplan, Jeffrey P., author
Prentice Hall International, 1995
Buku Teks
Powell, Ken, author
Macmillan Press, 1977
Buku Teks
Soegondo, author
Gadjah Mada University Press, 1993
Buku Teks
Soegondo, author
Gadjah Mada University Press , 1998
Buku Teks
Buku Teks