by Andrianus Meliala $7.00
by Maurice Duverger/Alfian $12.00
by Sei H. Dt. Tombak Alam $6.00
by Daradjadi Gondodiprojo $6.05
by Prof. Abdur Rahman I Do'I, Ph.D $7.00
by $12.00
by Prof. M. Nasroen $7.00