by Surip Stanislaus, OFMCap. $4.00
by Dr. Ir. Muhammad Rasyaf, MS $6.00
by Ir. H. Sudirman, Mpi & Prof. DR. Ir. Achmad Mellawa $9.00
by Dr. FX. Mudji Sutrisno, SJ $7.00
by Sidney Callahan $7.00
by $11.00