by Dr. Al. Purwa Hadiwardoyo, MSF. $3.00
by Ir. M. Lies Suprapti $6.00
by Dr. Beate Jakob, Dr. Cristoph Benn & Dr. Erlinda Senturias $7.00
by Ir. Arifin Arief, M. P $5.00
by Michaelene Mundy $6.00
by Dr. David Sagiv $6.00