Harvard University Press, 1974
Buku Teks
Romero, Flerida Ruth P.
U.P. Law Center, 1981
Buku Teks
United Nation , 1983
Buku Teks
Teuku Mohammad Radhie
Yayasan Penelitian dan Pengembangan Hukum, 1976
Buku Teks
Office of The Coordinating Minister for Social Welfare and Poverty Alleviation, 1998
Buku Referensi