by Prof. Dr. H. Muhaimin, M.A $11.00
by Prof. Dr. H. Abdurrahmat Fathoni, M.Si $7.00
by Ir. Setijo Pitojo $6.00
by J. Donald Walters $5.00
by Dr. FX. Mudji Sutrisno, SJ & Hendra Putranto (Ed) $12.00
by Drs. Slameto $7.00