Grotius, Hugo, author
Oceana Publications, 1964
Buku Teks
Gentili, Alberico
Oceana Publications Inc., 1964
Buku Teks
Pyle, Ransford Comstock
Delmar, Cengage Learning, 2011
Multimedia
Ball, John
Oughtershaw Press, 1996
Buku Teks
Tsun, Hang TEY, author
LexisNexis, 2011
Buku Teks