by Drs. Amin Widjaja Tunggal, Ak., M.B.A $6.00
by Prof. Dr. Sondang P. Siagian, M.P.A $9.00
by Niccolo Machiavelli $6.00
by M. Eksan $7.00
by Wahyu Wibowo $11.00
by Iwan Kurniawan $6.00