Artikel Jurnal
Yohana Surat Payon Philips, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2019
UI - Tesis (Membership)
Frick, Heinz, author
Kanisius, 1984
Buku Teks
Yuni Jie, author
Gramedia Pustaka Utama, 2007
Buku Teks
Defi Reisna, author
Universitas Indonesia, 2010
UI - Skripsi (Open)