by Ir. M. Lies Suprapti $9.00
by Ir. R. Bambang Soelarso $6.00
by PANKAT KAS $6.00
by A.M. Mangunhardjana, SJ $6.00
by $6.00
by Rahardjo, M. Dawan $7.00
by Kemas Ali Hanafiah $9.00
by Dr. Ir. Adji Sastrosupadi, MS $11.00
by $9.00
by Arswendo Atmowiloto $30.00