Moss, Geoffrey
Cengage Learning, 2012
Buku Teks
Fernandez, Juan Antonio
John Wiley & Sons (Asia), 2006
Buku Teks
Vance, Charles C.
McGraw-Hill, 1974
Buku Teks
Haskell Scchell, Erwin
McGraw-Hill Book Company, INC, 1957
Buku Teks
Universitas Indonesia, 2007
UI - Tesis (Membership)