Insight
Indonesia Scholars Journal, 2016
Majalah, Jurnal, Buletin
Loveridge, Denis
Foresight: The art and science of anticipating the future
Routledge, 2009
Buku Teks SO
An insight of retailing
Artikel Jurnal
Bolleau, Janet
Insight pocket guides Jakarta
APA Publications (HK) , 1991
Buku Teks SO
Kraft, Joseph
Profiles in power: a Washington insight
New American Library, 1966
Buku Teks SO