by Drs. Amrullah A., S.F., dkk $11.00
by Ernest Mariyanto $3.00
by Dr. Khalid Abu Syadi $5.00
by Ir. Sudadi Martodireso & Ir. Widada Agus Suryanto, MM $6.00
by H. Rahmat Rukmana $5.00
by James T. Burtchaell, CSC $4.00