by Husch, B $6.00
by $4.00
by Ir. Abbas Siregar Djarijah $5.00
by Johanes Suparyono $6.00
by Ir. H. Rahmat Rukmana $5.00
by J. Donald Walters $5.00
by F. Suryatmo $9.00
by Drs. Ahsin W. Al-Hafidz $6.00
by Drs. H.M. Yusran Asmuni $6.00
by $7.00
by - $11.00
by Reeves $13.00