by Anthony De Mello, SJ. $8.00
by Dr. Ir. Muhammad Rasyaf, MS $7.00
by Prof. Dr. Ir. Tri Yuwanta S.U., DEA $7.00
by ISEI $13.00
by Ir. Abbas Siregar Djarijah $5.00
by A. Sonny Keraf & Mikhael Dua $7.00