by Prof. Dr. Soerjono Soekanto, S.H., M.A. $3.00
by Supriadi, S. H., M. Hum. $12.00
by Lembaga Kajian Hukum Bisnis FH USU Medan $6.00
by Trubus Rahardiansah P $10.00
by - $18.00
by Suradji & Pularjono $9.00
by Darwan Prinst, S.H. $6.00