by Triono Budi Astanto $12.00
by Dr. Ahmad Ali Budaiwi $5.00
by Yusuf al-Uqshari $7.00
by Prof. I. R. Poedjawijatna $6.00
by Ch. Lilies Sutarminingsih $7.00
by Tony Buzan $16.00
by Al. Wahjasudibja, Pr. $12.00