Bainbridge, David
Pearson - Longman, 2002
Buku Teks SO
Azura Puan Khalisa
Program Pendidikan Vokasi Universitas Indonesia, 2025
UI - Skripsi Membership
McJohn, Stephen M., 1959-
Wolters Kluwers, 2015
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Caenegem, William van
Bond University Law School, 1994
Buku Teks SO
Eastaway, Nigel
Sweet & Maxwell, 2008
Buku Teks SO