Natarajan, Mangai, author
Cambridge University Press, 2019
eBooks
Chadwick, Elizabeth, author
Martinus Nijhof Publishers, 1996
Buku Teks
Otto, Roland
Springer, 2012
eBooks
Darcy, Shane, author
Cambridge University Press, 2014
Buku Teks
edited by Richard A. Falk and Cyril E. Black
Princeton University Presss, 1970
Buku Teks