by Leden Marpaung, S.H. $12.00
by DR. Andi Hamzah, S.H $11.00
by Kansil C.S.T $7.00
by Prof. Dr. H. Zainuddin Ali, M. A. $0.00
by M. Shidiq $9.00
by Prof. Mr. Dr. Sudargo Gautama $6.00