Thakore, Shuchen B.
Tata McGraw-Hill, 2007
Buku Teks
Gupta, Vijay
Tata McGraw-Hill, 1980
Buku Teks
Karsnitz, John R.
Delmar Cengage Learning, 2013
Buku Teks
Dym, Clive L.
John Wiley & Sons, 2000
Buku Teks
by Arvid R. Eide [and others]
McGraw-Hill, 2002
Buku Teks