Pusat Kajian Ilmu Ekonomi (Puskanomi) Universitas Indraprasta PGRI, 2016
Majalah, Jurnal, Buletin
Nagoya University of Commerce and Business,
Majalah, Jurnal, Buletin
Hanson, John Lloyd, author
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Buku Teks
University of Melbourne ,
Majalah, Jurnal, Buletin
edited by Richard Ivan Downing
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Buku Teks