Derby, Brian, author
Longman, 1992
Buku Teks
Hibbeler, R.C., author
Pearson/Prentice Hall, 2005
Buku Teks
Mallikarjuna, B.P., author
CBS, 1993
Buku Teks
Singer, Ferdinand L., author
Harper & Row, 1980
Buku Teks
Stepin, P., author
Peace, [1964?]
Buku Teks