Singer, Ferdinand L., author
New York: Harper and Row, 1975
Buku Teks
Meriam, J.L. (James L.), author
John Wiley & Sons, 1978
Buku Teks
Shelley, Joseph F., author
McGraw-Hill, 1980
Buku Teks
Huang, T.C., author
Addison-Wesley, 1968
Buku Teks
Hibbeler, R.C., author
Pearson - Prentice Hall, 2006
Buku Teks