Rowe, Standford H.
Science Research Associates, 1988
Buku Teks
Barnatt, Christopher, 1967
John Wiley & Sons, 1995
Buku Teks
Carr, Houston H., author
McGraw-Hill, 2003
Buku Teks
Green, James H., author
Irwin, 1992
Buku Referensi
Eka Sakti, author
Fakultas Hukum Universitas Indonesia, 2019
UI - Tesis (Membership)