Paul M.van Buren
Southern Methodist University Press, 1960
Buku Teks
Southern Methodist University Press, 1960
Buku Teks
Atiyah, P. S.
Clarendon Press, 1981
Buku Teks
Lee, Simon
Oxford University Press , 1986
Buku Teks
Hamburger, Max
New Haven Yale University Press, 1951
Buku Teks