by Dr. Emmanuel Subangun $4.00
by Drs. Yustinus Semiun, OFM $22.00
by Budi Susanto, S.J. $7.00
by Ir. Bambang Cahyono $7.00
by Prof. DR. Taliziduhu Ndraha $12.00
by Ir. Sutaman $6.00