Siti Yasmina Zubaedah
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2012
UI - Disertasi Membership
Keegan, Warren J.
Warren Keegan Associaties, 1995
Buku Teks
Imam Wahyudi
Universitas Indonesia, 2013
Artikel Jurnal
Lockyer, K.G.
Sir Isaac Pitman and Sons, 1969
Buku Teks
Huefner, Ronald J.
Business Expert Press, 2011
Buku Teks