by Prof. Dr. H. Zainuddin Ali M. A. $7.00
by Sudaryatmo, S.H. $5.00
by Dr. M. arif Nasution, MA $6.00
by Prof. Dr. Zainal Abidin Farid, S. H. $11.00
by M. Yahya Harahap, S.H. $16.00
by Prof. Mr. Dr. Sudargo Gautama $8.00