by Prof. J. Suprapto, M.A., APU $11.00
by Pandji Anoraga, S.E., M.M $11.00
by Drs. Zainuddin $7.00
by WK $13.00
by Drs. K. Permadi, S.H $7.00
by Drs. Djalinus Syah $9.00