Universitas Indonesia, 1984
UI - Skripsi Membership
Priyatna Abdurrasyid
Binacipta, 1977
Buku Teks SO
Lyall, Francis
Routledge, 2018
Buku Teks SO
Azizah Mutia Karim
Fakultas Hukum Universitas Indonesia, 2013
UI - Skripsi Membership
Christol, Carl Quimby
Kluwer Law and Taxation , 1991
Buku Teks SO