by Prof. dr. H. Sidarta Ilyas, SpM $7.00
by Drs. Syafi'in Mansur $6.00
by Oemarjati, Boen S. & W. Wardhana $6.00
by Paul M. Taylor Dp. M; $12.00
by Prof. Dr. Abuddin Nata, MA $9.00
by Budiman NPD $7.00