Kartono Gunawan
Universitas Indonesia, 1992
UI - Disertasi (Membership)
Case, Karl E.
Pearson, Prentice Hall, 2009
Buku Teks
Mankiw, N. Gregory
Harcout College, 1998
Buku Teks
Case, Karl E.
Prentice-Hall, 2004
Buku Teks
Case, Karl E.
Prentice-Hall, 1996
Buku Teks