Boxer, C. R., author
Martinus Nijhoff, 1948
Buku Teks
Latourette, Kenneth Scott, author
Macmillan, 1957
Buku Teks
Hyma, Albert, author
George Wahr, 1953
Buku Teks
Peffer, Nathaniel, author
University of Michigan Press, 1958
Buku Teks
Latourette, Kenneth Scott, author
Macmillan, 1951
Buku Teks