by H. J. Kachmadi Karm $3.00
by F. A. Suwandi Wihardjo, B. Sc $6.00
by Y.I. Iswarahadi, SJ. $4.00
by Ir. Arifin Arief, M. P $7.00
by John Navone, SJ. $6.00
by Lanny Lingga $9.00