Acton, J.R.
Academic Press, 1963
Buku Teks
Horst, H. L. van der.
Centrex Pub. Co, 1964
Buku Teks
Pozar, David M.
Jones Wiley & Sons, Inc., 2012
Buku Teks
Gentili, Christian
McGraw-Hill, 1987.
Buku Teks
Helszajn, Joseph
John Wiley & Sons, 1978
Buku Teks