Whittle, Peter
John Wiley & Sons, 1970
Buku Teks
Laha, R.G.
John Wiley & Sons, 1979
Buku Teks
Loeve, Michel
D. van Nonstrand, 19763
Buku Teks
Roussas, George G.
Academic Press, 2014
eBooks
Snell, J. Laurie (James Laurie), 1925-
McGraw-Hill , 1989
Buku Teks