Maris, Cees, editor
Springer, 2011
eBooks
Dentreves, A.P., author
Hutchinson`s University Library, 1951
Buku Teks
Cohan, Morris R.
Transactio Books, 1982
Buku Teks
Losee, John, author
Oxford University Press, 1980
Buku Teks
Wolf, Hans Julius
University of Oklahoma Press, 1978
Buku Teks