Paul Roman.Some modern mathematics for physicists and other outsiders：an introduction to algebra, topology, and functional analysis．v.1，Algebra , topoplogy, and measure theory.Pergamon,1975.
Some modern mathematics for physicists and other outsiders：an introduction to algebra, topology, and functional analysis．v.1，Algebra , topoplogy, and measure theory
Paul Roman.Some modern mathematics for physicists and other outsiders：an introduction to algebra, topology, and functional analysis．v.2，Functional analysis with applications.Pergamon,1975.
Some modern mathematics for physicists and other outsiders：an introduction to algebra, topology, and functional analysis．v.2，Functional analysis with applications
