Kutach, Douglas, author
Malden, MA : Polity, 2014
Buku Teks
Hart, H.L.A., author
Oxford University Press, 1959
Buku Teks
Mellor, DH
Routledge, 1995
Buku Teks
Dancygier, Barbara, author
Cambridge University Press, 2006
Buku Teks
Sihombing, Amanda Devina, author
2018
UI - Skripsi (Membership)