Alton, Walter G.
Little,Brown and Company, 1977
Buku Teks
Ninik Mariyanti, author
Bina Aksara, 1988
Buku Teks
Muhamad Rahadian Saputra, author
Fakultas Hukum Universitas Indonesia, 2016
UI - Skripsi (Membership)
Prasti Andiani, author
1988
UI - Skripsi (Membership)
Schutte, James E
Hogrefe and Huger, 1995
Buku Teks