Gere, James M., author
Brooks/Cole, 1984
Buku Teks
Craig, Roy R., 1934-, author
John Wiley & Sons, 1996
Buku Teks
Popov, Egor P., author
Prentice-Hall, 1969
Buku Teks
Hibbeler, R. C., author
Pearson/Prentice Hall, 2005
Buku Teks
Hibbeler, R.C., author
Pearson Prentice Hall, 2005
Buku Teks