Elsevier scine publisher , 2018
Majalah, Jurnal, Buletin
Germane, Gayton E., author
Addison-Wesley, 1983
Buku Teks
Coyle, John Joseph, 1935-, author
South-Western College, 2000
Buku Teks
Ammarsjah, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Tesis Membership
Amrul Alam, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2011
UI - Tesis Open