by Drs. Amin Widjaja Tunggal, Ak., M.B.A $12.00
by Kusnadi $7.00
by Prof. Drs. H. Soegyarto Mangkuatmodjo $9.00
by Robert T. Kiyosaki $7.00
by Prof. Dr. S. Nasution, M.A. $7.00
by Dr. H. Hamzah B. Uno, M.Pd $7.00