by Andang, Al $6.00
by Dr. B.S. Mardiatmadja $6.00
by Dr. A. Sonny Keraf $9.00
by Dr. E.G. Brahmaputra Marjadi, M.P.H $7.00
by Ir. Abbas Siregar Djarijah $6.00
by Drs. Agus M. Hardjana, M.Sc., Ed $6.00
by Ir. Juhaeni Radi $0.00