by Prof. DR. M. Solly lubis, S.H. $6.00
by Erikson Hasiholan Gultom (Prakata: DR. Todung Mulya Lubis, SH. & DR. Albert Hasibuan, SH) $13.00
by Martiman P $5.00
by Prof. Dr. Jur. Andi Hamzah $7.00
by - $16.00
by Prof. H. Hilman Hadikusuma, SH. $6.00