UMT,
Majalah, Jurnal, Buletin
Institute of technology management and entreprreneurship, kolej universiti teknikal kebangsaan malaysia,
Majalah, Jurnal, Buletin
Pusat Kajian Ilmu Ekonomi (Puskanomi) Universitas Indraprasta PGRI, 2016
Majalah, Jurnal, Buletin
FEUI, 2007
Majalah, Jurnal, Buletin
the Crawford School of Economics and Government, 2010
Majalah, Jurnal, Buletin