Pusat Kajian Ilmu Ekonomi (Puskanomi) Universitas Indraprasta PGRI, 2016
Majalah, Jurnal, Buletin
Stutely, Richard
The Economist Books, 1992
Buku Teks
Barlowe, Raleigh
Prentice-Hall, 1958
Buku Teks
Leontief, Wassily
Oxford University Press, 1966
Buku Teks SO
Nagoya University of Commerce and Business,
Majalah, Jurnal, Buletin