revised and update by Sandy Norman
Library Association Publishing, 1999
Buku Teks
revised and updated by Sandy Norman
Library Association Publishing, 1999
Buku Teks
Norman, Sandy, author
Library Association Publishing, 1996
Buku Referensi
Aritonang, Rayyan Gustio Kevin, author
Fakultas Hukum Universitas Indonesia, 2023
UI - Skripsi Membership
edited by Arthur Pollard
Macmillan, 1978
Buku Teks