by Bustraan $5.00
by Abdul Munir Mulkhan $9.00
by Ir. H. Rahmat Rukmana - Hj. Yuyun Yuniarsih, BSc. $5.00
by Moehd. Baga Kalie $6.00
by Wayan Sunarta $9.00
by Dr. Theo Huijbers $11.00