by Lanny Soechan $6.00
by Ir. H. Rahmat Rukmana - Hj. Yuyun Yuniarsih, BSc. $5.00
by Sartono & Marina Lubniar Sartono $10.00
by Ir. Suprio Guntoro $5.00
by Suwasono Heddy $6.00
by Ulrich $16.00
