By Pro.G.S.Sharma and others

Published by CBS publishers and distributors, 1984

Published by CBS publishers and distributors, 1987

By Malik Muhammad Zahir Fraidi

Published by Evernew Book Palace, 0

By Jerry March

Published by National Book Foundation, 1986

By Jerry March

Published by Mcgraw Hill, 1968

By S.M.Geddes

Published by Macmillan Education Ltd., 1986

By T.Duncan

Published by John Murray Publishers Ltd., 1986

By Tom Duncan

Published by Jojn Murray, 2000

By T.Duncan

Published by John Murray Publishers Ltd., 1985

By T.Duncan

Published by John Murray publishers ltd., 1985