Shillinglaw, Gordon, author
Richard D. Irwin, 1982
Buku Teks
Gillespie, Cecil, author
Prentice-Hall, 1957
Buku Teks
Bierman, Harold, author
PWS-Kent , 1990
Buku Teks
Killough, Larry N., author
Dickenson Publishing, 1977
Buku Teks
Nickerson, Clarence B., author
McGraw-Hill, 1962
Buku Teks