by IBII $7.00
by Drs. Suyadi Prawirosentono, MBA $7.00
by Burhanuddin $0.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Freddy Rangkuti $11.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00