Sitinjak, Robudi Musa, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2011
UI - Tesis (Open)
Maria Sukmawati Rahardjo, author
Universitas Indonesia, 2012
UI - Tesis (Open)
Rina S.F. Muhardini, author
Universitas Indonesia, 1989
UI - Skripsi (Membership)
Panjaitan, Hulman, author
Ind-Hill, 2003
Buku Teks
Panjaitan, Hulman, author
Ind-Hill, 2008
Buku Teks