by Larry King - dari CNN $7.00
by M.L. Jhingan $13.00
by Eaton, Joseph W $6.00
by $16.00
by Kasmir, S.E., M.M $11.00
by Prof. Dr. Husaini Usman, M.Pd & R. Purnomo Setiady Akbar, S.Pd., M.Pd $11.00