Indonesia Finance Today,
Majalah, Jurnal, Buletin
Ni, Xia, author
China Renmin Universitiy, 2015
eBooks
Okun, Arthur M., author
C.C. Norton, 1969
Buku Teks
Wernette, Philip
Macmillan, 1955
Buku Teks
Bernstein, Peter L
Doubleday Company, 1962
Buku Teks