Ball, John
University of Sydney, Faculty of Law, 1985
Buku Teks
Coast, John
Christophers, 1952
Buku Teks
Semiarto Aji Purwanto, author
Universiti Malaysia Sarawak, 2018
UI - Makalah dan Kertas Kerja
Salindeho, John, 1928-
Sinar Grafika, 1993
Buku Teks
Salindeho, John, 1928-
Sinar Grafika, 1988
Buku Teks