Calvert, James, author
McGraw-Hill, 1994
Buku Teks
Becker, William E., author
Addison-Wesley, 1987
Buku Teks
Lambourn, Simon
Longman, 1974
Buku Teks
Gear, C. William (Charles William), 1935-, author
1978
Buku Teks
Millington, D., author
Ellis Horwood, 1981
Buku Teks