Davies, Donald W., author
John Wiley & Sons, 1973
Buku Teks
Kishore, Swapna, author
Tata McGraw-Hill, 1991
Buku Teks
by Peter Kelman [and others]
Addison-Wesley, 1983
Buku Teks
John Newton author
Routledge , 1992
Buku Teks
Thomas, A.J.
Pitman and Son , 1967
Buku Teks