Bierman, Harold, author
PWS-Kent , 1990
Buku Teks
Maher, Michael W., 1946-, author
Richard D. Irwin , 1997
Buku Teks
Hilton, Ronald W., author
McGraw-Hill, 2003
Buku Teks
Killough, Larry N., author
Dickenson Publishing, 1977
Buku Teks
Mearns, Ian
Pitman, 1988
Buku Teks