Walker, Theodore D., author
Van Nostrand Reinhold,, 1990
Buku Teks
Krishnamachar, B.S.
Tata McGraw-Hill, 1978
Buku Teks
Mills, Edward D.
Butter Worths, 1980
Buku Teks
Ehrenkrantz, Ezra.
McGraw-Hill, 1989
Buku Teks
Baird, D. C.
Prentice-Hall, 1995
Buku Teks