by Jamrin Abubakar $15.00
by Drs. Amin Wijaja Tunggal, M.B.A $7.00
by Prof. DR. Sukardjo $13.00
by Drs. Agus M. Hardjana, M.Sc., Ed $6.00
by ML. Stein $6.00
by Budi Susanto, S.J. $7.00