by Dr. B. Siswanto Sastrohadiwiryo $9.00
by Drs. Ahmad Fida dan Tim Dosen KKN $9.00
by Prof. Dr. Sondang P. Siagian, M.P.A $7.00
by Drs. H. Moh. Pabundu Tika, M.M $7.00
by Peter H. Lindert $26.00
by Dutt, V.P $9.00