Butler, William J.
International Commission of Jurists, 1977
Buku Teks
U.P. Law Center, 1977
Buku Teks
Buhain, Atty. Dominador D.
PhilippineGraphicarts, 1992
Buku Teks
Nolledo, Jose N.
National Book Store, 1967
Buku Teks
Agbayani, Aguedo
AFA Publications, 1978
Buku Teks