UNESCO, 1962
Buku Teks
Johnson, Louise C., 1923-, author
Allyn and Bacon, 1991
Buku Teks
edited by Jared Genser, Bruno Stagno Ugarte
Cambridge University Press, 2014
Buku Teks
Makarim Wibisono [and others]
The Permanent Mission of the Repubilc of Indonesia to the Uniterd Nations, 2001
Buku Teks
Sircar, Muhammad Jamiruddin, author
Form International, 2003
Buku Teks