Kritzer, Albert H.
Kluwer Law and Taxation Publishers, 1989
Buku Teks SO
Dede Badrudin
Fakultas Hukum Universitas Indonesia, 2014
UI - Tesis Membership
Siti Fatimah
Fakultas Hukum Universitas Indonesia, 2006
UI - Skripsi Membership
Mir`Atul Latifah
Fakultas Hukum Universitas Indonesia, 2013
UI - Skripsi Membership
Betty, John Galtress, 1922-
McGraw-Hill, 1993
Buku Teks SO