by Dr. Hartono Budi, SJ. & Dr. M. Purwatma, Pr. (Editor) $7.00
by Linda Howard $7.00
by Ir. Arifin Arief, M. P $5.00
by Firdaus Syam $0.00
by Dra. Ninik Widiyanti $9.00
by Ade S $5.00
by F. A. Suwandi Wihardjo, B. Sc $6.00
by WK $13.00
by Ir. M. Lies Suprapti $6.00