by Paul Vallely (ed) $7.00
by Ir. Setijo Pitojo $6.00
by $6.00
by Ir. H. Rahmat Rukmana - Hj. Yuyun Yuniarsih, BSc. $6.00
by Ir. Hieronymus Budi Santoso $5.00
by Dr. Sjarkawi, M.Pd $7.00