by Ir. Eddy Afrianto & Ir. Evi Liviawaty $7.00
by Emanuel Gerrit Singgih, Ph.D. $7.00
by Drs. Ig. Wursanto $7.00
by $4.00
by Dr. Franz Magnis Suseno, SJ $9.00
by Budi Susanto, S.J. $7.00