by Anshori Djausal & Khaidir $6.00
by $9.00
by F. Suryatmo $11.00
by Prof. Dr. J. Winardi, SE $11.00
by Robert L. Heilbroner $12.00
by Prof. DR. H. Abdul Muis Ba'dulu & Hermann, S.Ag., M.Pd $7.00