by Ir. Setijo Pitojo $6.00
by Enceng Surachman & Widodo Agus S. $6.00
by Soepranto. J. $7.00
by H. Rahmat Rukmana $5.00
by Yoga Aditama, Tjandra $5.00
by Swasono, Sri-Edi $7.00
by J.C. Vergouwen $13.00
by Drs. Agus M. Hardjana, M.Sc., Ed $3.00
by Prof. Dr. M. Mutawalli asy-Sya'rawi $6.00
by Dr. Muhammad Na'im Yasin $5.00
by Dr. Ibrahim Khalil Ahmad $6.00