by Moenaf H. Regar $7.00
by Prof. Dr. S. Nasution, M.A. $7.00
by Muhaimin $9.00
by Drs. H. Rohadi Abdul Fatah, M.Ag $7.00
by Dr. Mahsun, M.S $11.00
by Prof. Dr. Sudarwan Danim $9.00