by Paulus Florus $12.00
by Dra. Nurul Zuriah, M.Si $0.00
by Prof. Dr. Soegyarto Mangkuatmodjo $13.00
by Prof. Dr. Sondang P. Siagian, M.P.A $9.00
by Drs. Basir Barthos $9.00
by Hermawan Kartajaya cs $12.00