by Drs. Hendiyat Soetopo $11.00
by T. Wexley & A. Yuki $9.00
by Drs. Daryanto $7.00
by Ir. Daisy P. Sriyadi Hendaryono, M.Si & Ir. Ari Wijayani $6.00
by Wijanto, dkk $7.00
by Drs. H.M. Yacob Ibrahim $11.00
by Gunawan Widjaja, A. Yani $9.00
by $7.00