by John H. Hampsch, C.M.F. $6.00
by Ir. H. Rahmat Rukmana - Hj. Yuyun Yuniarsih, BSc. $5.00
by Afandhie Rosmarkam & Nasih Widya Yuwono $9.00
by Dr. I. Bambang Sugiharto $7.00
by Petra Widmer $5.00
by WK $11.00