Gatot Efrianto
The Ary Suta Center Series on Strategic Management, 2015
Artikel Jurnal
Boas, Gideon
Edward Elgar Publishing, 2017
Buku Teks
Gultom, Erikson Hasiholan
Tatanusa, 2006
Buku Teks
by Robert Cryer ... [and others]
Cambridge University Press, 2016
Buku Teks
Knoops, Geert Jan Alexander
Kluwer, 2005
Buku Teks