By Bansi lal

Published by Ata Ram and Sons, 1959

By Dr. R.K.Tuli

Published by New light publishers A.H.wheeler & Co. Pvt.ltd., 0

By R.I.Moore

Published by Sang e Meel Publications, 1986

By Edited by E.A.Parr

Published by Heinemann Professional Publishing Ltd., 1988

By Eugene Trundle

Published by Heinemann Professional Publishing Ltd., 1990

By Muhammad Sadiq

Published by Akhtar Book Depot, 1967

By John E. Smith

Published by edward arbold, 1990

By George Fox Mott

Published by Barnes and noble, 1958

By M.R.Asaf

Published by Qaumi Katak Khana, 1965

By Joseph Conard

Published by Collier Books, 1962