Lucas, Henry C.
Erlangga, 1987
Buku Teks
Lucas, Henry C.
McGraw-Hill, 1985
Buku Teks
Hall, V.J.
Prentice-Hall, 1988
Buku Teks
James Cadle, Donald Yeates
Financial Times Prentice Hall, 2001
Buku Teks
Marsellinus Bachtiar
1997
UI - Skripsi (Membership)