by Sei H. Dt. Tombak Alam $5.00
by A.P. Oenarto Mulyopranoto, A.M. Baut dan Stephanus Ngamanken $6.00
by Ahmad Syarifuddin $7.00
by Prof. Dr. Prayitno dan Drs. Erman Amti $13.00
by Dr. Abdul Rahman Abdul Khalid $6.00
by Jim Taylor, Ph.D. $11.00