by Ir. Mul Muyani Sutedjo $7.00
by Prof. Dr. Nur Nasry Noor, M.P.H $6.00
by Drs. H. Abdul Fatah $7.00
by Muhammad Teguh $7.00
by Bambang Soepeno, M.Pd $9.00
by F.X. Djumialdji, S.H $7.00