Larsen, Richard J.
Prentice-Hall, 1981
Buku Teks SO
Wolf, Frank L.
McGraw-Hill, 1962
Buku Teks SO
Snell, E.J.
Chapman and Hall, 1991
Buku Referensi
Enrick, Norbert L.
Industrial Press, INC, 1983
Buku Teks SO
Erricker, B.C.
Hodder and Stoughton, 1981
Buku Teks SO