Faculty of Law National University of Singapore, 2018
Majalah, Jurnal, Buletin
Fox, James R., author
Oceana Publication, 1992
Buku Referensi
University of Malaya. The Faculty of Law, 1999
Majalah, Jurnal, Buletin
Erades, Judge
Martinus Nijhoff Publishers, 1983
Buku Teks
Zweigert, Konrad, author
North-Holland, 1977
Buku Teks