by Prof. Dr. Husaini Usman, M.Pd & R. Purnomo Setiady Akbar, S.Pd., M.Pd $11.00
by Prof. S.H. Rewoldt, Terj. Drs. A.H. Ali $7.00
by Sonny Yuwono, Edy S $9.00
by Jopie Jusuf $11.00
by Drs. Amin Wijaja Tunggal, M.B.A $9.00
by Indra Darmawan, S.E $7.00