by Drs. Radno Harsanto, M.Si $9.00
by Maurice Duverger $7.00
by M. Ghufron H. Kordi K $7.00
by Frianto Pandja, S.E $11.00
by Drs. H. Burhanuddin Salam, M.M $11.00
by Drs. H. Farozin $6.00