Green, D.C., author
Longman, 1995
Buku Teks
edited by Norman G. Einspruch
Academic Press, 1982
Buku Teks
Calvert, J.M., author
John Wiley & Sons, 1978
Buku Teks
Grob, Bernard, author
McGraw-Hill, 1977
Buku Teks
Bignell, James, author
McGraw-Hill, 1985
Buku Teks