by Ir. H. Rahmat Rukmana, MBA $5.00
by Prof. Dr. Gerben Heitink & Fred. Heselaars Hartono, SJ. $8.00
by Ir. Lisdiana Fachruddin $5.00
by Joos van Vugt $7.00
by Dr. Rufus Pereira $6.00
by Abdullah bin Abdul Muhsin $5.00