Muni, Harry W.
Prentice-Hall, 1973
Buku Teks
Spiegel, Murray R.
McGraw-Hill, 1968
Buku Referensi
compiled and edited by the Howard W. Sams Engineering Staff ; [illustrator, Ralph E. Lund]
H.W. Sams, 1992
Buku Referensi
Burington, Richard Stevens
McGraw-Hill, 1973
Buku Referensi
Spiegel, Murray R.
McGraw-Hill , 2012
Buku Teks SO