by Ir. Sujamto $7.00
by Prof. Mr. Dr. Sudargo Gautama $7.00
by Sukarmi, S. H., M. Hum $9.00
by Gunawan Widjaja $7.00
by Sayuti Thalib, S.H. $7.00
by Prof. Mr. Dr. Sudargo Gautama $8.00