by Drs. Amin Widjaja Tunggal, Ak., M.B.A $11.00
by Drs. Djalinus Syah., dkk $9.00
by Sadono Sukirno $18.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Drs. Zulkifli Amsyah, MLS $13.00
by Kerry Patterson, Joseph Grenny, Ron McMillan, Al Switzler $12.00