edited by G. William Dauphinais and Colin Price
Simon & Schuster , 1998
Buku Teks
Ziegler, Raymond J.
Appleton-Century-Crofts, 1966
Buku Teks
Buchholz, Regene A.
Prentice-Hall, 1986
Buku Teks
Keith, Lyman A., author
McGraw-Hill, 1975
Buku Teks
McNaughton, Wayne L., author
John Wiley & Sons, 1960
Buku Teks