by Eko P. Pratomo $12.00
by Ir. Irianto Aritonang, dkk $6.00
by Uli Kozok $10.00
by Prof. Dr. Husaini Usman, M.Pd & R. Purnomo Setiady Akbar, S.Pd., M.Pd $11.00
by Prof. Drs. H. A. W. Widjaja $9.00
by Dr. S. Prawirasusanto, M.Sc., dkk $9.00
by - $6.00