Kunst, Jaap, 1891-1960, author
Martinus Nijhoff, 1973
Buku Teks
Olmstead, A.T., author
University of Chicago Press, 1948
Buku Teks
Peddiwell, J. Abner
McGraw-Hill , 1939
Buku Teks
Ilbert, Courtenay
Oxford University Press , 1947
Buku Teks
edited by Korean National Commission for UNESCO
Hollym, 2004
Buku Referensi