by Dr. Ir. Muhammad Rasyaf, MS $7.00
by Drs. Wartono Hadie & Dra. Lies Emmawati Hadie $6.00
by Ernest Mariyanto $3.00
by Mulja Tarmidi $6.00
by Prof. Dr. Ahmad Shalaby $12.00
by Dr. Niels Mulder $11.00
by Drs. H. Malayu S.P. Hasibuan $11.00
by Hazairin $5.00
by Prof. Moeljatno, S.H $7.00
by - $12.00
by Ahsin W. Al-Hafidz $9.00
by $6.00