by Sotar Baduara & Drs. S. Martin Sirait $6.00
by Ahmadi Miru $11.00
by Ir. M. Iqbal Hasan $12.00
by J. Price Gittinger $6.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00
by Evan Pritchard $7.00
by $9.00