Tobing, Jonathan Dharma Tama, author
Fakultas Ilmu Administrasi Universitas Indonesia, 2019
UI - Skripsi (Membership)
Muhammad Ilham Alkadly Kanedy, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Skripsi (Membership)
Sinkey, Joseph F., author
Macmillan, 1983
Buku Teks
Situmorang, Jeffry Prabowo., author
2014
UI - Skripsi (Membership)
Pamela Kresna, author
Universitas Indonesia, 2016
UI - Tesis (Membership)