Mill, Robert Christie, author
RajaGrafindo Persada, 2000
Buku Teks
Mill, Robert Christie, author
RajaGrafindo Persada, 2000
Buku Teks
Mill, Robert Christie, author
Prentice-Hall, 1990
Buku Teks
Behrman, Jack N., author
McGraw-Hill, 1971
Buku Teks
Holloway, J Christoper.
Prentice-Hall, 2002
Buku Teks