by Prof. Dr. Prayitno $9.00
by Agus S. Gunadi $7.00
by Dr. Ir. M\'Imadduddin Abdul Rahim, M.Sc $6.00
by Mas Harto $6.00
by Paul de Blot, SJ $0.00
by Dr. Sylvia Rimm $11.00
by Prof. M. Nasroen $7.00
by Suyonodarsono $12.00
by $6.00
by Redaksi (Penghimpun) $5.00
by - $11.00
by - $6.00