Ahmad Sohrab and the New History Society, by Paul E. Haney, Horace Holley, Corinne True. (1958-01-14) Overview of the defection of Ahmad Sohrab and the formation of the "New History Society" and the "Caravan of East and West."
Haney, Paul, by Richard Francis. (1998) Brief bio of the life of a Hand of the Cause of God.