by Sulistyo-Basuki $13.00
by Prof. Dr. Sondang P. Siagian, M.P.A $7.00
by Dr. Gunarto Suhardi, SH $9.00
by Gunawan Wiradi $12.00
by Drs. Ibnu Syamsi, S.U $6.00
by Johanes Lim, Ph.D., CPC $9.00