by $11.00
by Ny. Susmayati, B.A dan Ny. Hj. Asnidar $6.00
by Drs. Burhanuddin Salam $9.00
by Ir. Mul Muyani Sutedjo $7.00
by Prof. DR. S.P. Siagian, M.P.A $9.00
by Harry Simons $12.00
by Ir. M. Iqbal Hasan $9.00
by Eaton, Joseph W $6.00
by $4.00
by Aji Supriyanto $16.00
by Soedharyo Soimin, S.H. $9.00
by R. Wiyono, S. H. $12.00