by $6.00
by Prof. DR. A.P. Parlindungan, SH. $5.00
by Sanusi Bintang, S.H., M.Lis. & Dahlan, S.H., M.H. $5.00
by Prof. Dr. C.S.T Kansil & S.T Kansil Christine , S.H $8.00
by Syahmin AK $9.00