by Drs. Bambang S., dkk $9.00
by Bert van der Heijden, SCI. $4.00
by Ir. Sujamto $7.00
by Dr. Aidh Al-Qami $13.00
by AT Mahmud $13.00
by Andang, Al $6.00
by Dr. Sayidd Al-Jumaili $7.00