by Ir. Ari Wijayani Purwanto $9.00
by J. F. Dumanauw $7.00
by James Rachets $11.00
by Maurice Eminyan, SJ. $8.00
by Ir. A. G. Kartasapoetra $6.00
by Parakkasi, Aminuddin $6.00
by Aju Isni Karim $11.00
by V. Lestari $12.00
by Soedharyo Soimin, S. H. $11.00
by Wahyuningrum $6.00