by - $11.00
by Drs. Sudarsono, S.H., M.Si $7.00
by C. Rollin Niswonger $12.00
by Prof. Soetjipto dan Drs. Raflis Kosasi, M.Sc $9.00
by Prof. Mr. Notonagoro $9.00
by Budi Streptiadi $7.00