Singer, Ivan
The theory of best approximation and functional analysis
Society for Industrial and Applied Mathematics, 1974
 eBooks
Abdelmalek, Nabih N.
Numerical linear approximation in C
CRC Press, Taylor & Francis Group, 2008
 Buku Teks
Collatz, Lothar
Functional analysis and numerical mathematics
Academic Press, 1966
 Buku Teks SO
Vichnevetsky, Robert
Fourier analysis of numerical approximations of hyperbolic equations
Society for Industrial and Applied Mathematics, 1982
 eBooks
Nik, Weaver
Measure theory and functional analysis
World Scientific, 2013
 Buku Teks SO