edited by William E. Butler
Sijthoff & Noordhoff, 1980
Buku Teks
edited by Ko Swan Sik
Martinus Nijhoff, 1990
Buku Teks
Huda Robbani
Fakultas Hukum Universitas Indonesia, 2013
UI - Skripsi Membership
Panjaitan, Alda Mayo Panajam
Universitas Indonesia, 2012
UI - Skripsi Open
Verzijl, J.H.W.
Martinus Nijhoff Publishers, 1992
Buku Referensi