by Eddy Purnomo $6.00
by Ir. Rabiatual Adawyah, M.P $7.00
by Franz Magnis-Suseno $5.00
by Ir. Daisy P. Sriyadi Hendaryono, M.Si & Ir. Ari Wijayani $6.00
by Hidya Tyaya Th, SJ & Sudarminta J, SJ $9.00
by Dr. Tom Jacobs, SJ. $8.00