Schroeder, Richard G., author
John Wiley & Sons, 2009
Buku Teks
Wild, John J., author
McGraw-Hill, Irwin, 2004
Buku Teks
Lener, Augene M.
N.Y. Hardcourt , 1966
Buku Teks
Helfert, Erich A., author
Erlangga, 1991
Buku Teks
Myer, John N.
Prentice-Hall, 1974
Buku Teks