by A. Widyamartaya, B.A $4.00
by Bambang Dwiloka & Rati Riana $9.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Huub J. W. M. Boelaars, OFM.Cap. $15.00
by Paul de Blot, SJ $0.00
by Prof. Dr. H. Abdurrahmat Fathoni, M.Si $6.00
by Drs. H. Zainuddin $7.00