Maguire, David J., author
Wiley, 1989
Buku Teks
Lele, R.D., author
Tata McGraw-Hill, 1993
Buku Teks SO
Lytel, Allan, author
Howard W. Sams, 1974
Buku Teks
Rowley, Jennifer, author
Clive Bingley , 1980
Buku Teks
Norton`s, Peter, author
McGraw-Hill , 2006
Buku Teks