by Prof. Dr. Umar Tirtarahardja dan Drs. La Sula $12.00
by $5.00
by Prof. Dr. Soerdjono Dirdjosisworo $7.00
by Dr. R. Hutapea, SKM, Ph.D $7.00
by Redaksi (Penghimpun) $16.00
by Budi Agus Riswandi $7.00