by J. Donald Walters $5.00
by F. Budi Hardiman $11.00
by Prof. Djafaruddin $7.00
by Ir. Indriyanto $9.00
by Ir. Bambang Cahyono $7.00
by M. Firdaus $0.00
by Drs. Inu Kencana Syafiie $7.00
by Eriyanto $11.00
by Noer Iskandar Al Barsany $6.00
by N. Wahyu Sulistiyana $4.00
by Ernest & Sri Mariyanto $4.00
by Endar Sugiarto & Ir. Kusmayadi $9.00