By C.Lowell Harriss

Published by Richard D.Irwin Inc, 1959

By Wallace G. Sayre

Published by Branes and noble, 1960

By Mc Camy

Published by Harper and Brothers, 1957

By John D Hicks

Published by Houghton Mifflin Co., 1956

By Smilser

Published on 0

By R.C.Majumdar

Published by Macmillan, 1965

By Majumdas

Published by Macmillan, 1965

Published on 1984

By Prof. Shahbaz Ali

Published by Shahbaz and Company, 0

By Sarfraz Khawaja(editor)

Published by Allied Book Company, 2016