Howard, Colin
Law Book, 1987
Buku Teks
Siregar, Paramita Sondang D.A.
Universitas Indonesia, 2018
UI - Tesis Membership
Nandira Nurul Zafira
Universitas Indonesia, 2015
UI - Skripsi Membership
CCH Australia Limited, 1980
Buku Teks
Kluwer Law and Taxation Publlishers, 1985
Buku Teks