Tobing, G.H.S. Lumban
Kelompok Belajar Esa, 1979
Buku Teks
Hadi Setia Tunggal
Harvarindo, 2008
Buku Teks
Daniel, author
Fakultas Hukum Universitas Indonesia, 2010
UI - Tesis (Open)
Helen Stefani, author
Universitas Indonesia, 2013
UI - Tesis (Membership)
Akhyar, author
2018
UI - Tesis (Membership)