by Prof. Soetjipto dan Drs. Raflis Kosasi, M.Sc $9.00
by Abdul Wahhab Khallaf $9.00
by Samuel P. Huntington $13.00
by Ilyas Ismail $5.00
by Prof. H.M. Arifin, M.Ed $9.00
by Ghufron A. Mas;adi $7.00