by Drs. Agus M. Hardjana, M.Sc., Ed $5.00
by Aloys Budi Purnomo, Pr. $3.00
by Hiro Tugiman $6.00
by H. Rahmat Rukmana $6.00
by H. Rahmat Rukmana $5.00
by J.P. Vaswani $7.00
by Rokhmin Dahuri $13.00