by J. Darminta, SJ $3.00
by Dr. A. Supratiknya $6.00
by Drs. Wishnubroto Widarso $5.00
by Ir. Suyatno Risza $9.00
by Haryoto $5.00
by Gino Moretto $8.00
by Masduki $7.00
by Ir. H. Rahmat Rukmana $6.00
by H. Rahmat Rukmana $5.00
by Ir. Ari Wijayani Purwanto $9.00
by Aziz Alimul $11.00
by Prof. DR. dr. S.M. Lumbantobing, SpS(K), SpKJ $6.00