Verzijl, J.H.W., author
Martinus Nijhoff Publishers, 1992
Buku Referensi
Symmons, Clive R., author
Martinus Nijhoff, 1979
Buku Teks
Hill, Christopher, author
LLP, 2003
Buku Teks
Yvonne Baatz, editor
Informa Law from Routledge, 2018
Buku Teks
Ross, Alf, author
Longmans, Green , 1947
Buku Teks