Hamper, Robert J., author
McGraw-Hill, 2014
Buku Teks
Kendrick, Terry, author
Facet, 2006
Buku Teks
Stone, Bob, author
NTC Business Book, 1988
Buku Teks
Padolecchia, Siro P.
Vikas Publishing House, 1979
Buku Teks
Majaro, Simon, author
George Allen & Uniwin, 1982
Buku Teks