Wilbraham, Anthony C., author
ITB Press, 1992
Buku Teks
Solomons, T. W. Graham, author
John Wiley & Sons, 1996
Buku Teks
Fessenden, Ralph J., author
Erlangga, 1986
Buku Teks
Wilbraham, Antony C., author
ITB Press, 1992
Buku Teks
Fessenden, Ralph J., author
Erlangga, 1995
Buku Teks