by Dr. H. Abuddin Nata, MA $7.00
by Prof. Dr. C.S.T Kansil & S.T Kansil Christine , S.H $8.00
by Yusuf Shofie $7.00
by Juswito Satrio, S.H. $6.00
by Prof. DR. A.P. Parlindungan, SH. $5.00
by Marihot P. Siahaan $11.00
by Andrew Beatty $11.00