by Pandiwinoto C.P $6.00
by Ir. Hieronymus Budi Santoso $5.00
by Bambang Agus Murtidjo $6.00
by NC. Madjid $6.00
by Maria Farida Indrati S. $11.00
by J. I. G. M. Drost, SJ $11.00
by Ir. Ari Wijayani Purwanto $9.00