Buck, R. Creighton, author
McGraw-Hill, 1965
Buku Teks
Binmore, K.G., author
Cambridge University Press, 1995
Buku Teks
Research and Education Association, 1987
Buku Teks
Research and Education Association, 1987
Buku Teks
Kiryakova, Virginia
The Longman Scientific & Technical, 1993
Buku Teks