by Maurice Duverger $7.00
by Prof. J. Suprapto, M.A. APU $11.00
by Dr. W. Herdin Sibuea., dkk $7.00
by Drs. AS. Sudarmono $11.00
by Drs. Djalinus Syah, Dra. Syamsahrul,Dra. Azimar Enong $7.00
by H. Rahmat Rukmana $0.00
by Hasriadi Mat Akin $11.00