Leech, Geoffrey N., 1936-, author
Longman, 1994
Buku Teks
Schaik, Leon van, author
Birkhauser, 2008
Buku Teks
edited by Wilhelm Danca
Council for Research in Values and Philosophy, 2008
Buku Teks
Rakananda Defiano Jusuf Firmano, author
Fakultas Hukum Universitas Indonesia, 2023
UI - Skripsi Membership
Ploscowe, Morris, author
Hawthorn Books, 1955
Buku Teks